W32/Randon-AN

Category: Viruses and Spyware
Type: Win32 worm
Prevalence: Small Number of Reports

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W32/Randon-AN is a network worm with IRC backdoor functionality.

W32/Randon-AN can spread through IRC channels and network shares. W32/Randon-AN is a network worm with IRC backdoor functionality.

W32/Randon-AN can spread through IRC channels and network shares.

The worm is distributed as a self-extracting archive which installs the worm's components. The following files are created:

app.exe - a clean utility to manage processes
netservup.exe - a hacked mIRC application, detected as W32/Randon-AN
nsrust.exe - a legitimate tool to hide windows
nsup1.sys - an empty file
nsup2.sys - a harmless configuration file
nsup3.sys - a configuration file, detected as W32/Randon-AN
nsuser.bat - a BAT file to add a user to the local computer
tool.sys - a configuration file, detected as W32/Randon-AN

The worm creates the following registry entry in order to run itself automatically on computer logon:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
ansjava
<path to mIRC application>

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