Submission Summary:

What's been foundSeverity Level
A network-aware worm that uses known exploit(s) in order to replicate across vulnerable networks.
MS04-012: DCOM RPC Overflow exploit - replication across TCP 135/139/445/593 (common for Blaster, Welchia, Spybot, Randex, other IRC Bots).
MS04-011: LSASS Overflow exploit - replication across TCP 445 (common for Sasser, Bobax, Kibuv, Korgo, Gaobot, Spybot, Randex, other IRC Bots).
Capability to modify the hosts file that may potentially block access to security-related Web sites.
Replication across networks by exploiting weakly restricted shares (common for Randex family of worms).
Communication with a remote IRC server.
Creates a startup registry entry.
Contains characteristics of an identified security risk.


Technical Details:


Possible Security Risk

Security RiskDescription
Worm.Mevon.A Worm.Mevon.A is a worm which propagates via removable drives. It disables execution of certain normal applications.

Threat CategoryDescription
A network-aware worm that attempts to replicate across the existing network(s)
A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment


Memory Modifications

Process NameProcess FilenameMain Module Size
rpcall.exe%System%\inetsrv\rpcall.exe765,952 bytes


Registry Modifications


Heuristics Analysis



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