FakeAlert-Rena.dg!A1A​6E3D9331C

This page shows details and results of our analysis on the malware FakeAlert-Rena.dg!A1A6E3D9331C

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

278720

Description Added

2013-04-01

Description Modified

2013-04-01

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionFakeAlert-Rena.dg
Length278720 bytes
MD5a1a6e3d9331cca6253d0733ed91f9372
SHA1abecd5b79bd0b065d9ad9407b0448478d18961d2


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Malware-gen
AVG (GriSoft)FakeAV_r.QB
aviraTR/Crypt.ZPACK.Gen2
KasperskyTrojan.Win32.FakeAV.pbgd
BitDefenderTrojan.Generic.KDZ.2299
Dr.WebTrojan.Fakealert.35771
F-ProtW32/FakeAlert.WT.gen!Eldorado
FortiNetW32/Necurs.AET!tr
Microsoftrogue:win32/fakerean
SymantecTrojan.FakeAV!gen101
normanW32/FakeAlert.CZUA
risingTrojan.FakeAV!4D83
SophosMal/FakeAV-KL
vba32BScope.Trojan.MTA.01707

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


ActivitiesRisk Levels
Modifies Windows security center settings.High
Modifies Windows firewall settings.Medium
Enumerates many system files and directories.Low
Enumerates process listLow
Process attempts to call itself recursivelyLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaFakeAlert-Rena.dg
McAfee SupportedFakeAlert-Rena.dg



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:

ABECD5B79BD0B065D9AD9407B0448478D18961D2

The following files have been added to the system:

  • %USERPROFILE%\Local Settings\Application Data\GDIPFONTCACHEV1.DAT
  • %USERPROFILE%\Templates\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl
  • %TEMP%\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl
  • %USERPROFILE%\Local Settings\Application Data\hvv.exe
  • %ALLUSERSPROFILE%\Application Data\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl
  • %USERPROFILE%\Local Settings\Application Data\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl

The following registry elements have been created:

  • HKEY_CURRENT_USER\.EXE\
  • HKEY_CURRENT_USER\.EXE\DEFAULTICON\
  • HKEY_CURRENT_USER\.EXE\SHELL\
  • HKEY_CURRENT_USER\.EXE\SHELL\OPEN\
  • HKEY_CURRENT_USER\.EXE\SHELL\OPEN\COMMAND\
  • HKEY_CURRENT_USER\.EXE\SHELL\RUNAS\
  • HKEY_CURRENT_USER\.EXE\SHELL\RUNAS\COMMAND\
  • HKEY_CURRENT_USER\EXEFILE\
  • HKEY_CURRENT_USER\EXEFILE\DEFAULTICON\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\OPEN\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\OPEN\COMMAND\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\RUNAS\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\RUNAS\COMMAND\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\.EXE\CONTENT TYPE = application/x-msdownload
  • HKEY_CURRENT_USER\.EXE\SHELL\OPEN\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\.EXE\SHELL\RUNAS\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\EXEFILE\CONTENT TYPE = application/x-msdownload
  • HKEY_CURRENT_USER\EXEFILE\SHELL\OPEN\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\EXEFILE\SHELL\RUNAS\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\IDENTITY = 3044072876
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\CTFMON.EXE = %WINDIR%\SYSTEM32\ctfmon.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\UPDATESDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\START = 4
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\DISABLENOTIFICATIONS = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\ENABLEFIREWALL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DISABLENOTIFICATIONS = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\ENABLEFIREWALL = 0

The applications attempted the following network connection(s):

  • 64.4.11.**:80

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

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

Variants