1. Symantec/
  2. Security Response/
  3. Attack Signatures/
  4. System Infected: W32.Almanahe.B 3

System Infected: W32.Almanahe.B 3

Severity: High

This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.


This signature detects network activity related to W32.Almanahe.B

Additional Information

W32.Almanahe.B is a worm that infects executable files. It attempts to spread to network shares protected by weak passwords. It also attempts to end certain security-related processes on the compromised computer.


  • Various Windows Platforms


The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.

1. Disable System Restore (Windows Me/XP).
2. Update the virus definitions.
3. Run a full system scan.
4. Delete any values added to the registry.
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