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From: david evlis reign (davidreign
hotmail.com)Date: Thu Feb 14 2002 - 03:44:11 CST
hi,
this is my first post and i am sorry that i had to be the bearer of bad
news.
while doing my monthly audit today on my company's external boxes (gateways,
external mail forwarders/...) i came across some *strang* files, which after
inspection turned out to be source code to a new internet worm...
the headers are as follows:
/*** Skelleton for an INET-worm. Plug-in the exploitcode and the
*** scan-routine and it works!
*** You propably have to change the sleep-seconds from 10 to a higher value.
*** Worms must be linked statically in this case.
*** For educational purposes only! Don't use it in a bad manner.
***/
in fact the exploitcode was a ssh exploit by someone going by the name of
"zip" and inspecting the source of this "skelleton" worm it seems it is
cross platform, harbouring shellcode for *bsd, linux and solaris. i was
totally dismayed and i saved a copy of this and another file, then i
reformatted...i was not going to let my mail server be used to launch
attacks on sites.
the other file in which i found was not a worm but a "autorooter" for ssh,
as ssh-1.2.26 was running on a mail server out of my audit space, the
attackers had obviously abused a trusted relationship.
the headers are as follows:
a kernerl module:
//
// (ssmod.c) by _dave
//
// Kernel module that bypasses the password check on the x2
// sshd crc32 exploit.
//
// gcc -c -O3 ssmod.c -I/usr/src/linux/include
// /sbin/insmod ssmod.o
//
a scanning module:
/*
** pscan.c - Originally by Volatile
** modified by _dave
**
*/
another file, i am not sure what this does
/* oops.c, part of the autossh package... by _dave */
/* nodupe2.c .... by _dave */
/* ssvuln.c */
/* by _dave */
as you can see this exploit is being exploited in the wild...i am too afraid
to think of the possibilities if that "skelleton" is released.
i just hope i have got to the public in time...
- david evlis reign, PhD compsci, CCISP
ps: any further details will be provided to reserachers
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