RDN/Downloader.a!sj!7​D13F6A82740

This page shows details and results of our analysis on the malware RDN/Downloader.a!sj!7D13F6A82740

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

885784

Description Added

2014-08-02

Description Modified

2014-08-02

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Downloader.a!sj
Length885784 bytes
MD57d13f6a827401d2cbe6e033059f55c85
SHA136f5292a9ccac1601c3c2af29f527335a87a6114


Other Common Detection Aliases

Company NamesDetection Names
aviraTR/Dldr.Agent.27440
KasperskyTrojan.MSIL.Agent.ewrg
BitDefenderTrojan.Generic.11438828
clamavPUA.Win32.Packer.Upx-28
Dr.WebTrojan.DownLoader10.474
F-ProtW32/Downloader.EV.gen!Eldorado
FortiNetRiskware/DomaIQ
EsetWin32/DomaIQ.AG application
pandaPUP/MultiToolbar.A (hacking tool)
vba32Trojan.Downloader.gen.h

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


ActivitiesRisk Levels
Attempts to connect to a medium risk domain that may pose a minor security risk.Medium
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow


McAfee ScansScan Detections
McAfee BetaRDN/Downloader.a!sj
McAfee SupportedRDN/Downloader.a!sj



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:

36F5292A9CCAC1601C3C2AF29F527335A87A6114

The following files have been added to the system:

  • %TEMP%\nss11.tmp
  • %TEMP%\371E5.dmp
  • %TEMP%\DM\36F5292A9CCAC1601C3C2AF29F527335A87A6114\4515c26805cb4a70a0f37a832840a7b5\installer.ex
  • %TEMP%\DM\36F5292A9CCAC1601C3C2AF29F527335A87A6114\4515c26805cb4a70a0f37a832840a7b5\36F5292A9CCA
  • %TEMP%\dw.log

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

  • %TEMP%\Tar48.tmp
  • %TEMP%\DM\36F5292A9CCAC1601C3C2AF29F527335A87A6114\4515c26805cb4a70a0f37a832840a7b5\launch.exe
  • %TEMP%\DM\36F5292A9CCAC1601C3C2AF29F527335A87A6114\4515c26805cb4a70a0f37a832840a7b5\e36F5292A9CC
  • %TEMP%\nsi10.tmp
  • %TEMP%\nsd12.tmp
  • %TEMP%\nsd12.tmp\NSISdl.dll
  • %TEMP%\Cab47.tmp
  • %TEMP%\DM\36F5292A9CCAC1601C3C2AF29F527335A87A6114\4515c26805cb4a70a0f37a832840a7b5\launch.exe.c
  • %TEMP%\res.txt

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\0048F8D37B153F6EA2798C323EF4F318A5624A9E\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\00EA522C8A9C06AA3ECCE0B4FA6CDC21D92E8099\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\0483ED3399AC3608058722EDBC5E4600E3BEF9D7\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\049811056AFE9FD0F5BE01685AACE6A5D1C4454C\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\0B77BEBBCB7AA24705DECC0FBD6A02FC7ABD9B52\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\1331F48A5DA8E01DAACA1BB0C17044ACFEF755BB\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\1F55E8839BAC30728BE7108EDE7B0BB0D3298224\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\209900B63D955728140CD13622D8C687A4EB0085\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\216B2A29E62A00CE820146D8244141B92511B279\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\23E594945195F2414803B4D564D2A3A3F5D88B8C\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\24A40A1F573643A67F0A4B0749F6A22BF28ABB6B\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\24BA6D6C8A5B5837A48DB5FAE919EA675C94D217\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\273EE12457FDC4F90C55E82B56167F62F532E547\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\2796BAE63F1801E277261BA0D77770028F20EEE4\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\284F55C41A1A7A3F8328D4C262FB376ED6096F24\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\2F173F7DE99667AFA57AF80AA2D1B12FAC830338\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\36863563FD5128C7BEA6F005CFE9B43668086CCE\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\394FF6850B06BE52E51856CC[private subnet]CC\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\3F85F2BB4A62B0B58BE1614ABB0D4631B4BEF8BA\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4072BA31FEC351438480F62E6CB95508461EAB2F\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\40E78C1D523D1CD9954FAC1A1AB3BD3CBAA15BFC\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\43DDB1FFF3B49B73831407F6BC8B975023D07C50\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\43F9B110D5BAFD48225231B0D0082B372FEF9A54\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4463C531D7CCC[private subnet]BB656D3BF8257846F\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\47AFB915CDA26D82467B97FA42914468726138DD\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4B421F7515F6AE8A6ECEF97F6982A400A4D9224E\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4BA7B9DDD68788E12FF852E1A024204BF286A8F6\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4C95A9902ABE0777CED18D6ACCC3372D2748381E\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4EF2E6670AC9B5091FE06BE0E5483EAAD6BA32D9\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SYSTEMCERTIFICATES\AUTHROOT\CERTIFICATES\4EFCED9C6BDD0C985CA3C7D253063C5BE6FC620C\BLOB = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\CONTROL\SESSION MANAGER\PENDINGFILERENAMEOPERATIONS = \??\%TEMP%\nsd12.tmp\

The applications attempted the following network connection(s):

  • 72.167.18.***:80
  • hxxp://dtrack.secdls.com/debug/trace/*****
  • 54.218.7.***:80
  • hxxp://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/*****

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