On Fri, 1 Jun 2001, Alvin Oga wrote: > just was curious why i couldnt find any references on any of the > "unique" keywords ( maniac-Rk, grabb, ipz.gz ... I haven't seen it anywhere else, but it seems to be built using publicly available, common stuff... > -rwxr-xr-x 1 root root 5043 Mar 23 07:18 addlen* This is a program to pad replaced file with zeros to match its original size. > -rw-r--r-- 1 root root 5744 May 31 10:10 adore.o > -rwxr-xr-x 1 root root 14248 May 31 10:10 ava* That is pretty popular kernel-level backdoor, designed by stealth (to parts, kernel-space and user-space). > -rwxr-xr-x 1 root root 1080 Mar 23 07:48 clear_logs* Hard to identify - pretty small, probably invokes vanish2 (is it a shell script?). > -rwxr-xr-x 1 root root 7985 Mar 23 07:38 fix* This one is used to fix checksums of files (not md5 digests ;). > -rwxr-xr-x 1 root root 10171 May 4 12:39 grabbb.gz* That would be a banner scanner, publicly available. > -rwxr-xr-x 1 root root 5220 Jun 1 18:53 install.sh* ...and this script would invoke 'addlen' and 'fix' ;) > -rwxr-xr-x 1 root root 4734 May 8 10:04 ipz.gz* /* members.xoom.com/i0wnu * IPZ by Mixter (c) 1999 * Generates IP Addresses for Class A/B/C SubNets * in non-sequential order (for unnoticed scanning). */ > -rwxr-xr-x 1 root root 10496 Mar 23 07:48 pine.out* (unidentified, probably worth a look) > -rwxr-xr-x 1 root root 9070 May 4 11:55 slice* This seems to be one of DDoS attack proggies. > -rwxr-xr-x 1 root root 15335 May 31 09:58 ping* Well, that would be standard ping utility, I presume, carried for some reason. > -rw-r--r-- 1 root root 19700 Jun 1 18:03 snifflog > ---s--s--x 1 root root 11869 Apr 4 19:10 sush* This one is pretty interesting. I know only a few exploits that use this name: - suidperl - old crontab exploit - Linux 2.2 capabilities exploit But last two uses /tmp, not current directory, for creating 'sush'. > -rwxr-xr-x 1 root root 12405 May 31 09:38 vanish2.gz* And that would be another log cleaner. > -rwxr-xr-x 1 root root 58068 May 19 06:58 wget.gz* > -rwxr-xr-x 1 root root 20445 Apr 2 12:24 bnc.gz* > -rwxr-xr-x 1 root root 14319 May 31 10:05 tty* These proggies seems to be not harmful. -- _____________________________________________________ Michal Zalewski [lcamtufat_private] [security] [http://lcamtuf.coredump.cx] <=-=> bash$ :(){ :|:&};: =-=> Did you know that clones never use mirrors? <=-=
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