Sophos

Troj/DwnLdr-GZL

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
Included in our products from February 2008 (4.26)
Protection available since 9 December 2007 15:42:40 (GMT)
Detected by All Sophos products

Action

More Information

Troj/DwnLdr-GZL is a downloader Trojan for the Windows platform.

When Troj/DwnLdr-GZL is installed the following files are created:

<System>\drivers\63cica.sys - detected as Troj/NTRootK-CL
<System>\drivers\cjamkm.sys - detected as Troj/NTRootK-CM
<System>\nvqkghjr.dll - detected as Troj/DwnLdr-GZL

The file 63cica.sys is registered as a new system driver service named "63cica", with a display name of "63cica" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\63cica

The file cjamkm.sys is registered as a new system driver service named "cjamkm", with a display name of "cjamkm" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\cjamkm

Registry entries are created under:

HKLM\SOFTWARE\Microsoft\IE4

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