MD5: 6a99131551ab7673fab52f795f8d4f77
SHA1: 499a1a0ed098718011a3638aaa12d27081463ffa
SHA256: 72b20fad80c5635ce3fab27d2bb4e55ea87e8c099209e8ae7a558ce63aeedd86
SSDeep: 24576:ls0uzgEdFDY Igmbg6WHbTlTG89tnRe6K:wzg20 IRbgJbdG89tRzK
Size: 879104 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Firseria
Created at: 2013-07-06 12:30:36
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.

Payload

No specific payload has been found.

Process activity

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

%original file name%.exe:1660

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

spoolsv.exe:1436
mxdefender.exe:1732

File activity

The process %original file name%.exe:1660 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)

The process spoolsv.exe:1436 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 PRO.lnk (807 bytes)
%Documents and Settings%\All Users\Application Data\mxdefender (7695 bytes)

Registry activity

The process %original file name%.exe:1660 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" = "BF 07 93 E1 C1 13 45 7E FA 14 56 DE BE CA 28 E2"

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

The process spoolsv.exe:1436 makes changes in the 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" = ""
"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\System\CurrentControlSet\Control\Print\Providers\a3c5e]
"Name" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\1.tmp"

[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"
"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"
"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"
"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, a3c5e"

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\a3c5e]

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

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

The process mxdefender.exe:1732 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" = "24 FD DA 4C A5 14 5E FA C3 58 0A 95 0E 73 0A 35"

[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"

Network activity (URLs)

No activity has been detected.

HOSTS file anomalies

No changes have been detected.

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):
   

   %original file name%.exe:1660
   

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

   %Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (13682 bytes)
   %Documents and Settings%\All Users\Desktop\Internet Security PRO.lnk (807 bytes)
   %Documents and Settings%\All Users\Application Data\mxdefender (7695 bytes)

4. Reboot the computer.
   

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