minimal-minimal

PWS-Kronos!BE9BDDDF95A8

PWS-Kronos!BE9BDDDF95A8

Threat Detail

  • Malware Type: Trojan
  • Malware Sub-type: Password Stealer
  • Protection Added: 2012-04-08

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

5400.1158

File Length

106496

Description Added

2012-04-08

Description Modified

2012-04-08

Malware Proliferation

fpo-ti-severity-legend logo-new-mcafee

This is a Trojan

File PropertiesProperty Values
McAfee DetectionPWS-Kronos
Length106496 bytes
MD5be9bdddf95a897199522c26fd13e38ea
SHA183b93c06b0469f1e144bf3d90c2b918d1ed7e41a


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWin-Trojan/Kronos.106496
avastWin32:Trojan-gen
AVG (GriSoft)PSW.Generic.FYB
aviraTR/Kronos.A1
Dr.WebDLOADER.PWS.Trojan
eSafe (Alladin)Win32.Trojan
F-ProtW32/Trojan.DMZ
FortiNetW32/Kronos!tr
MicrosoftTrojanSpy:Win32/Kronos.A
SymantecBackdoor.Trojan
Esetprobably unknown NewHeur_PE virus
normanW32/Kronos.B
risingTrojan.Win32.Generic.122FA7AD
SophosTroj/Kronos-A
Trend MicroTROJ_KRONOS.A
V-BusterTrojan.Agent!cabQzLfMrK8

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


ActivitiesRisk Levels
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaPWS-Kronos
McAfee SupportedPWS-Kronos



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:

83b93c06b0469f1e144bf3d90c2b918d1ed7e41a

vdisk_ico The following files have been added to the system:

  • %APPDATA%\winlog.log

vreg_ico The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MSNMESSENGER\
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\
  • HKEY_USERS\.DEFAULT\SOFTWARE\MICROSOFT\MESSENGERSERVICE\

vreg_ico The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\BINVAL
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\BINVAL2
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\BKUP = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\FAIL = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\LOOP = 14
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIENT\VARS = 0

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.

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.

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