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Gen.Variant.Graftor.63772_69bc937e5d

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Gen:Variant.Graftor.63772 (BitDefender), HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Gen:Variant.Graftor.63772 (B) (Emsisoft), Artemis!69BC937E5D5A (McAfee), Trojan.Win32.Spy (Ikarus), Win32/DH{E3ksQQY} (AVG)Behaviour: Trojan

The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary

MD5: 69bc937e5d5a172edd260ea762f733ef

SHA1: f6e6851e05031545254740bc212f857d3bce0008

SHA256: ab2586bb503e9700b0eac0b9280369311f7d982a288610ccd08a08febfeb4dbf

SSDeep: 24576:efzk4Qe/dThVIPXt7 6zGuZMRYBR6YGD:4nXhVIPXt7 0cYBlG

Size: 1019392 bytes

File type: EXE

Platform: WIN32

Entropy: Not Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 2013-10-25 05:38:36

Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:1684
Reader_sl.exe:1064
wuauclt.exe:344
jusched.exe:1056

File activity

The process %original file name%.exe:1684 makes changes in the file system.


The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WDQZGTAJ\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\256R05QT\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\QPWT29EV\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\9RITQOOR\desktop.ini (67 bytes)

The process wuauclt.exe:344 makes changes in the file system.


The Trojan creates and/or writes to the following file(s):

%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)

The Trojan deletes the following file(s):

%WinDir%\SoftwareDistribution\DataStore\Logs\tmp.edb (0 bytes)

The process jusched.exe:1056 makes changes in the file system.


The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)

Registry activity

The process %original file name%.exe:1684 makes changes in the system registry.


The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\BROWSE\SCRIPT_DEBUGGER_IE]
"DefaultValue" = "yes"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\BROWSE\SCRIPT_DEBUGGER_IE]
"UncheckedValue" = "no"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKCR\Microsoft.PubIE]
"(Default)" = "c:\%original file name%.exe"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]
"1601" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\BROWSE\SCRIPT_DEBUGGER]
"UncheckedValue" = "no"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\BROWSE\SCRIPT_DEBUGGER_IE]
"CheckedValue" = "yes"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\BROWSE\SCRIPT_DEBUGGER]
"DefaultValue" = "yes"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Internet Explorer\Main]
"DisableScriptDebuggerIE" = "yes"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C1 BC E7 BE 31 F0 88 D4 0B 28 88 03 50 A2 D8 9A"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\BROWSE\SCRIPT_DEBUGGER]
"CheckedValue" = "yes"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Internet Explorer\Main]
"Disable Script Debugger" = "yes"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The process Reader_sl.exe:1064 makes changes in the system registry.


The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

Network activity (URLs)

No activity has been detected.

HOSTS file anomalies

The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 0 bytes in size. All records have been removed.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.

Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):

    %original file name%.exe:1684
    wuauclt.exe:344

  2. Delete the original Trojan file.
  3. Delete or disinfect the following files created/modified by the Trojan:

    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WDQZGTAJ\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\256R05QT\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\QPWT29EV\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\9RITQOOR\desktop.ini (67 bytes)
    %WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
    %WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
    %WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

Network Activity

Map

Strings from Dumps