Sophos

Troj/Agent-GZC

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Included in our products from July 2008 (4.31)
Protection available since 12 May 2008 18:26:12 (GMT)
Detected by All Sophos products

Action

More Information

Troj/Agent-GZC when run drops the following files:

<Program files>\Internet Explorer\PLUGINS\WinSys16.Sys
<Program files>\Internet Explorer\PLUGINS\WinSys16.Tao

The files WinSys16.Sys and WinSys16.Tao are both detected as Troj/Agent-GZC.

Troj/Agent-GZC also installs itself as a class at the following registry location:

HKCR\CLSID\{1AB1F65A-964F-4AE7-B254-05146A0E602E}

Troj/Agent-GZC also installs itself as a Explorer Browser Helper Object using the following registry entry:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
{1AB1F65A-964F-4AE7-B254-05146A0E602E}
""

Troj/Agent-GZC also configures the class to autorun using the following registry entry:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks
{1AB1F65A-964F-4AE7-B254-05146A0E602E}
""

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