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FakeAV.Win32.FakeRean_8352c9a6f3


HEUR:Trojan.Win32.Generic (Kaspersky), FraudTool.Win32.FakeRean.mco (v) (VIPRE), Trojan.SuspectCRC!IK (Emsisoft), Fake-AV.Win32.FakeRean.2.FD, FakeAVWin32FakeRean.YR (Lavasoft MAS)Behaviour: Trojan, Fake-AV

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

Summary

MD5: 8352c9a6f3a26b797771e740e32fb1d8

SHA1: fd4274a452399fca86c35fb71444a12e329f6004

SHA256: bae69b3b4264d7df480943b3e03bc8ef42e76006f2e821937661e94d64999d5c

SSDeep: 6144:kfgrmfODBhJXHT7H9s5IxsZHOejMYrJ0C:kd0jT7Hu5zrjjCC

Size: 231431 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: Armadillov171, MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, UPolyXv05_v6

Company: no certificate found

Created at: 2011-05-14 23:50:40

Summary: Fake-AV. FakeAV programs generate exaggerated threat reports on the compromised computer then ask the user to purchase a registered version to remove those reported threats.

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Fake-AV creates the following process(es):

Reader_sl.exe:1064
wuauclt.exe:344
8352c9a6f3a26b797771e740e32fb1d8.exe:1480
igp.exe:2012
jusched.exe:1056

The Fake-AV injects its code into the following process(es):

igp.exe:224

File activity

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


The Fake-AV 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 Fake-AV deletes the following file(s):

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

The process 8352c9a6f3a26b797771e740e32fb1d8.exe:1480 makes changes in a file system.


The Fake-AV creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Application Data\igp.exe (231 bytes)

The process igp.exe:224 makes changes in a file system.


The Fake-AV creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\bdi6808m2t72hbeeko3 (227 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\bdi6808m2t72hbeeko3 (227 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\bdi6808m2t72hbeeko3 (227 bytes)
%Documents and Settings%\%current user%\Templates\bdi6808m2t72hbeeko3 (227 bytes)

The Fake-AV deletes the following file(s):

C:\8352c9a6f3a26b797771e740e32fb1d8.exe (0 bytes)

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


The Fake-AV 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 Reader_sl.exe:1064 makes changes in a system registry.


The Fake-AV 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"

The process 8352c9a6f3a26b797771e740e32fb1d8.exe:1480 makes changes in a system registry.


The Fake-AV creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D5 10 A8 0F 4E 07 39 C2 17 86 FE 9B 9C 53 85 35"

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusOverride" = "1"

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

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile]
"DisableNotifications" = "1"

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

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallDisableNotify" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center]
"UpdatesDisableNotify" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallOverride" = "1"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile]
"EnableFirewall" = "0"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile]
"DoNotAllowExceptions" = "0"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify" = "1"

A firewall is disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"EnableFirewall" = "0"

The following service is disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess]
"Start" = "4"

Firewall notifications are disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DisableNotifications" = "1"

The process igp.exe:224 makes changes in a system registry.


The Fake-AV creates and/or sets the following values in system registry:

[HKCU\Software\Classes\exefile\shell\open\command]
"(Default)" = "%Documents and Settings%\%current user%\Local Settings\Application Data\igp.exe -a %1 %*"

[HKCU\Software\Classes\exefile\shell\runas\command]
"IsolatedCommand" = "%1 %*"

[HKCU\Software\Classes\exefile]
"(Default)" = "Application"

[HKCU\Software\Classes\.exe\shell\runas\command]
"IsolatedCommand" = "%1 %*"

[HKLM\SOFTWARE\Clients\StartMenuInternet]
"(Default)" = "IEXPLORE.EXE"

[HKCU\Software\Classes\exefile\shell\open\command]
"IsolatedCommand" = "%1 %*"

[HKCU\Software\Classes\.exe\shell\runas\command]
"(Default)" = "%1 %*"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

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

[HKCU\Software\Classes\exefile\shell\runas\command]
"(Default)" = "%1 %*"

[HKCU\Software\Classes\exefile]
"Content Type" = "application/x-msdownload"

[HKCU\Software\Classes\.exe\shell\open\command]
"IsolatedCommand" = "%1 %*"

[HKCU\Software\Classes\.exe]
"(Default)" = "exefile"

[HKLM\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command]
"(Default)" = "%Documents and Settings%\%current user%\Local Settings\Application Data\igp.exe -a %Program Files%\Internet Explorer\iexplore.exe"

[HKCU\Software\Classes\exefile\DefaultIcon]
"(Default)" = "%1"

[HKCU\Software\Microsoft\Windows]
"Identity" = "2278697780"

[HKCU\Software\Classes\.exe\shell\open\command]
"(Default)" = "%Documents and Settings%\%current user%\Local Settings\Application Data\igp.exe -a %1 %*"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "38 00 2C EE ED C5 84 5B 70 00 5B 38 11 CF 2C BB"

[HKCU\Software\Classes\.exe\DefaultIcon]
"(Default)" = "%1"

[HKCU\Software\Classes\.exe]
"Content Type" = "application/x-msdownload"

To automatically run itself each time Windows is booted, the Fake-AV adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"ctfmon.exe" = "%System%\ctfmon.exe"

Network activity (URLs)

URL IP
hxxp://vawinofemu.com/1023000113209.99.40.219
hxxp://hehabocawezawe.com/1023000113208.73.211.247
wyciwywyt.comUnresolvable
vokixehimal.comUnresolvable
vuxipupuhaz.comUnresolvable
xitytusahysese.comUnresolvable
rygemakub.comUnresolvable


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):

    wuauclt.exe:344
    8352c9a6f3a26b797771e740e32fb1d8.exe:1480
    igp.exe:2012

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

    %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\Application Data\igp.exe (231 bytes)
    %Documents and Settings%\All Users\Application Data\bdi6808m2t72hbeeko3 (227 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\bdi6808m2t72hbeeko3 (227 bytes)
    %Documents and Settings%\%current user%\Local Settings\Application Data\bdi6808m2t72hbeeko3 (227 bytes)
    %Documents and Settings%\%current user%\Templates\bdi6808m2t72hbeeko3 (227 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "ctfmon.exe" = "%System%\ctfmon.exe"

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.
*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

Network Activity

Map

Strings from Dumps