1. Symantec/
  2. Security Response/
  3. Attack Signatures/
  4. System Infected: Zbot Activity

System Infected: Zbot Activity

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.

Description

This signature detects attempts to send suspicious HTTP activity indicative of the Zbot Trojan.

Additional Information

This signature detects an attempt to send suspicious HTTP requests to a server which downloads potentially malicious files on to the compromised computer.

Affected

  • Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP

Response

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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