Security Incidents mailing list archives

Re: Notepad - Worm


From: Mike Lewinski <mike () ROCKYNET COM>
Date: Mon, 25 Sep 2000 14:25:25 -0600

Name: Troj/Qaz
Aliases: W32.HLLW.Qaz.A, W32/QAZ.worm
Type: Trojan
Date: 29 August 2000

I think about 90% of all attempts to access smb on my site are originated
by this worm. The standard listening port is 7597

Does anybody knows the standard password  or a URL to get the source ?

Well, now I've found something....

$ nc <qaz_infected_ip) 7597
:qazwsx.hsq
run dir
exit

The prompt is a single colon :

Entering anything other than "qazwsx.hsq" at the : will close the
connection. Also this only seems to work with netcat. When I tried telnet it
didn't even accept my exit command (but it did take the qazwsx.hsq and give
me a > prompt).

It does seem to allow for the remote client to run commands, as when I tried
"run dir" it paused for a few seconds, then returned me to a prompt (without
displaying the output). To test that theory I started up a packet sniffer
and did a 'run ping <my_ip>' and sure enough, the command was run on the
remote machine.

Mike


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