Generic Downloader.x!CC7AEB66​9464

This page shows details and results of our analysis on the malware Generic Downloader.x!CC7AEB669464

Overview

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.


Minimum DAT

7261 (2013-11-16)

Updated DAT

7261 (2013-11-16)

Minimum Engine

5600.1067

File Length

614816

Description Added

2013-11-16

Description Modified

2013-11-16

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionGeneric Downloader.x
Length614816 bytes
MD5cc7aeb6694646629ef3b3757944d35e4
SHA17a66a630b4f212038a77978dcd24e1a99735c4d6


Other Common Detection Aliases

Company NamesDetection Names
AVG (GriSoft)Skodna.Downloader.AB.dropper
aviraAPPL/Downloader.Gen
Dr.WebAdware.Downware.1593
Eseta variant of Win32/DownloadSponsor.A
SophosDownloadSponsor

Other brands and names may be claimed as the property of others.


ActivitiesRisk Levels
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaGeneric Downloader.x
McAfee SupportedGeneric Downloader.x



System Changes

Some path values have been replaced with environment variables as the exact location may vary with different configurations.
e.g.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files


The following files were analyzed:

7A66A630B4F212038A77978DCD24E1A99735C4D6

The following files have been added to the system:

  • %TEMP%\OCS\ICSharpCode.SharpZipLib.dll
  • %TEMP%\~DFF532.tmp
  • %USERPROFILE%\Local Settings\Application Data\GDIPFONTCACHEV1.DAT
  • %TEMP%\OCS\aoqsiwchslmejbnw.dat
  • %TEMP%\OCS\ocs_v7f.exe

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\OCS\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\OCS\CID = 1d7e3df9-b0ec-4c01-83f5-6e2138162475
  • HKEY_CURRENT_USER\SOFTWARE\OCS\LASTPID = dcude
  • HKEY_CURRENT_USER\SOFTWARE\OCS\PID = dcude

The applications attempted the following network connection(s):

  • hxxp://thinklabs-ltd.de/*****
  • 88.198.27.***:443

Symptoms

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Method of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

Removal

Please use the following instructions for all supported versions of Windows:


1. Disable Windows System Restore. For instructions, please refer to: http://www.mcafee.com/us/downloads/free-tools/disabling-system-restore.aspx

2. Update your McAfee Anti-Virus product to the latest version (when possible), and ensure the latest DAT and Engine and any applicable EXTRA.DATs are installed.

3. Run a full system scan. (On-Demand Scan)

4. Reboot, as soon as it is convenient, to ensure all malicious components are removed.

Variants