Fake-AV.Win32.FakeRean_6f20e1dd76

by malwarelabrobot on July 31st, 2013 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.FakeRean.aab (v) (VIPRE), Win32.SuspectCrc!IK (Emsisoft), Fake-AV.Win32.FakeRean.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
Technical Details
Removal Recommendations

MD5: 6f20e1dd7629b87adaf9d23347e5bcf1
SHA1: 7564c5b88ea0278a859559eae5e36f5ae07a4620
SHA256: e444c6120e4685c14c2aec45a2e94c5f47d7173b0cfa79a1d612864e93d08b21
SSDeep: 24576:KxeR9AMR1i1M4HEDFZk9ZUxn5mDYiktLqwqLW9GEB0DB:GeR951i 4kDPkDUxnokEfLUGEM
Size: 888832 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-06-04 19:25:28


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.

Payload

No specific payload has been found.

Process activity

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

Reader_sl.exe:1064
wuauclt.exe:344
jusched.exe:1056
6f20e1dd7629b87adaf9d23347e5bcf1.exe:560

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

indefender.exe:592
spoolsv.exe:1436

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 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)

The process spoolsv.exe:1436 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\indefender (7700 bytes)
%Documents and Settings%\All Users\Desktop\Internet Security PRO 2013.lnk (817 bytes)

The process 6f20e1dd7629b87adaf9d23347e5bcf1.exe:560 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\1.tmp (13682 bytes)

Registry activity

The process indefender.exe:592 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" = "F2 A4 79 8D 73 3E 57 35 48 55 04 77 64 E4 2F F2"

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

[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 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 spoolsv.exe:1436 makes changes in a system registry.
The Fake-AV creates and/or sets the following values in system registry:

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Start Menu" = ""

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = ""

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

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"My Pictures" = ""

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

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\LocalService\Application Data"

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\LocalService\Local Settings\Temporary Internet Files"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\A]
"BaseClass" = "Drive"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\LocalService\Cookies"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 03 00 00 00 01 00 00 00 00 00 00 00"

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

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\C]
"BaseClass" = "Drive"

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

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = ""

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"CommonMusic" = "%Documents and Settings%\All Users\Documents\My Music"

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

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\D]
"BaseClass" = "Drive"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\F]
"BaseClass" = "Drive"

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

[HKLM\System\CurrentControlSet\Control\Print\Providers\4e81f]
"Name" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\1.tmp"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"CommonVideo" = "%Documents and Settings%\All Users\Documents\My Videos"

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

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\LocalService\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"CommonPictures" = "%Documents and Settings%\All Users\Documents\My Pictures"

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

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

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

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

[HKLM\System\CurrentControlSet\Control\Print\Providers]
"Order" = "LanMan Print Services, Internet Print Provider, 4e81f"

Proxy settings are disabled:

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Fake-AV deletes the following registry key(s):

[HKLM\System\CurrentControlSet\Control\Print\Providers\4e81f]

The Fake-AV deletes the following value(s) in system registry:

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"

The process 6f20e1dd7629b87adaf9d23347e5bcf1.exe:560 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" = "40 80 01 91 7A DA 26 91 1B 26 58 0E BE D9 21 AD"

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\2.tmp,"

Network activity (URLs)

URL IP
hxxp://twinkcam.net/images/s.php?id=47
hxxp://cinnamyn.com/images/s.php?id=47


Rootkit activity

No anomalies have been detected.

Propagation


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
    6f20e1dd7629b87adaf9d23347e5bcf1.exe:560

  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\Temp\jusched.log (347 bytes)
    %Documents and Settings%\All Users\Application Data\indefender (7700 bytes)
    %Documents and Settings%\All Users\Desktop\Internet Security PRO 2013.lnk (817 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (13682 bytes)

  4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  5. Reboot the computer.

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

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