Skip to main content

FakeAV.Win32.FakeRean_b610ce965f


Susp_Dropper (Kaspersky), Trojan.Win32.Kryptik.blyf (v) (VIPRE), 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

MD5: b610ce965f4d34aa50ed5b08cdadf9cf

SHA1: 01b959ece54376ac8e8daeb1c3206e3489c8a3ce

SHA256: dcbbe1b8272d6d92a1326cd552937210ed1a425b645b2aa5561726918ebb32e1

SSDeep: 12288:lpbQCsGp6XO0sZpLPtcMFt6tIs3MXBoztQ 4SpeRJ10FNB8p5UD1sD PrhOgpaSU:nbt4 RZVtcMnbXQneRJ10xRsD 9Ou

Size: 852480 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 2013-10-20 20:33:39

Analyzed on: WindowsXP SP3 32-bit

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):

%original file name%.exe:3392

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

spoolsv.exe:1432
allsecurity.exe:680

File activity

The process spoolsv.exe:1432 makes changes in the file system.


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

%Documents and Settings%\All Users\Desktop\Internet Security.lnk (804 bytes)
%Documents and Settings%\All Users\Application Data\allsecurity (6712 bytes)

The process %original file name%.exe:3392 makes changes in the 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 spoolsv.exe:1432 makes changes in the system registry.


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

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"

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

[HKLM\SOFTWARE\Microsoft\ESENT\Process\spoolsv\DEBUG]
"Trace Level" = ""

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

[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"EventMessageFile" = "%System%\ESENT.dll"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"DefaultConnectionSettings" = "46 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00"

[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\Services\Eventlog\Application\ESENT]
"CategoryCount" = "16"

[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"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 01 00 00 00 09 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"Active" = "1"

[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"
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"ControlFlags" = "1"

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

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

[HKLM\System\CurrentControlSet\Control\Print\Providers\6aa7b]
"Name" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\1.tmp"

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

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

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"

[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"TypesSupported" = "7"

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

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"ControlFlags" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"Guid" = "8aefce96-4618-42ff-a057-3536aa78233e"

[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryMessageFile" = "%System%\ESENT.dll"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

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

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

[HKLM\System\CurrentControlSet\Control\Print\Providers]
"Order" = "LanMan Print Services, Internet Print Provider, 6aa7b"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"LogSessionName" = "stdout"
"ControlFlags" = "1"

[HKU\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"ParseAutoexec" = "1"

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\6aa7b]

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

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

[HKLM\SOFTWARE\Microsoft\ESENT\Process\spoolsv\DEBUG]
"Trace Level"

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

The process %original file name%.exe:3392 makes changes in the system registry.


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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1B 2D 5B 8B 35 D3 1D 68 89 6A 4B ED 64 88 BB 03"

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

The process allsecurity.exe:680 makes changes in the system registry.


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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FD 40 65 67 B6 CD 6C 3A 88 67 28 29 E0 5F 7F 76"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

Network activity (URLs)

URL IP
hxxp://twinkcam.net/images/s.php?id=23874.86.20.50
hxxp://cinnamyn.com/images/s.php?id=238216.17.105.36


HOSTS file anomalies

No changes have been detected.

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:3392

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

    %Documents and Settings%\All Users\Desktop\Internet Security.lnk (804 bytes)
    %Documents and Settings%\All Users\Application Data\allsecurity (6712 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.

Static Analysis

Network Activity

Map

Strings from Dumps