Threat Level: green Handler on Duty: Jim Clausing

SANS ISC: Port 41523 (tcp/udp) Attack Activity Port 41523 (tcp/udp) Attack Activity


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64.227.125.180 (2)91.213.50.135 (5)
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Port diary mentions
URL
Happy Valentine's Day; ARCserve probes?; OWA issue; new Opera version
Port 41523; Linux Exploit; Phishing Name server; New Feature: tcp %; ssh attacks; MSRC blog
New mydoom variant; ARCserve exploitation has begun... got Port 41523 TCP packets?
User Comments
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Comment
Joy Whitney 2005-03-10 08:09:02
This is the Computer Associates Brightstor Arcserver discovery service port. All of the machines in one address range on our WAN was hit at about 8:20PST on 2/24/05. On most machines it just killed the process. On 5 machines it killed the process but also attempted to write a file named wumgrs32.exe. Also found a file named o (with the same time stamp)which was an ftp script to download the mentioned exe file.
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