Security Incidents mailing list archives

Re: win95, notepad.exe worm/trojan, note.com


From: Mike Lewinski <mike () ROCKYNET COM>
Date: Sat, 9 Sep 2000 11:37:37 -0600

The worm you refer to is known as QAZ (and other names). It was
discovered in August(?) of this year and is slowly but surely
becoming more widespread. It defaults to port 7597.

It is grossly under-rated by most
anti-virus vendors as it appears to be spreading quite rapidly.

This now explains the netbios connections I've seen from 20 different
neighboring IPs at home since Aug 28. I verified port 7597 as open on the
most recent one, and note also that this IP has visited at least once a day
for the last two weeks.

The source IP's spanned ~100 Class C's, and I've calculated that the
furthest one scanned ~20,000 hosts before getting to me (assuming a
sequential scan... hmmm and the most frequent visitor has a "higher" IP than
mine. Does this thing both increment and de-increment when it scans? I did
verify the 7597 port open on IPs both above and below my own).

Unknown user: security@[myISP]

Well, at least abuse@ hasn't bounced back yet.

Here's Linkage:

http://www.sarc.com/avcenter/venc/data/qaz.trojan.html
http://vil.mcafee.com/dispVirus.asp?virus_k=98775&;

Mike


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