RDN/Generic Downloader.x!ix!8B70B​520A334

This page shows details and results of our analysis on the malware RDN/Generic Downloader.x!ix!8B70B520A334

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 Engine

5600.1067

File Length

986112

Description Added

2013-11-27

Description Modified

2013-11-27

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic Downloader.x!ix
Length986112 bytes
MD58b70b520a334c07303d33e7c2d9a707b
SHA1c3416138ac4f7b7a53d828cfb6e96e5edb9fd4c1


Other Common Detection Aliases

Company NamesDetection Names
KasperskyTrojan-Downloader.Win32.Pher.pgn
Dr.WebBackDoor.Siggen.50180
FortiNetW32/Pher.PGN!tr.dldr
SymantecSuspicious.Cloud.2
pandaSuspicious file

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


ActivitiesRisk Levels
Attempts to load and execute remote code in a previously loaded processMedium
Attempts to write to a memory location of a previously loaded process.Medium
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
Attempts to write to a memory location of an unknown processLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Generic Downloader.x!ix
McAfee SupportedRDN/Generic Downloader.x!ix



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:

C3416138AC4F7B7A53D828CFB6E96E5EDB9FD4C1

The following files were temporarily written to disk then later removed:

  • %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-1482476501-[private subnet]522115-500\549b9b645cadfe6bb4bc69cf36

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\XTREMERAT\
  • HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\GK1739989711Y.FPK\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\XTREMERAT\MUTEX = dfsfsfgS
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\DIRECTDRAW\MOSTRECENTAPPLICATION\ID = 998081231
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\DIRECTDRAW\MOSTRECENTAPPLICATION\NAME = fixmapi.exe

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