MD5: f9e9dc3c041983ed05e9c19170711086
SHA1: f4458842e59742e48b517c70d218214c8216f343
SHA256: d6c538d352ff954cac08f1ed0bade24ece5f8a7f56179a89ee4e3d982d0691d0
SSDeep: 6144:E0CCwAEV4ighsJOvqHxLRnEyfuxrZb8Ty/fqvq5MbLudx7TlzssbT:jkuigrCHWz8Ty/f0bLuH7xzs
Size: 352256 bytes
File type: DLL
Platform: WIN32
Entropy: Packed
PEID: MicrosoftVisualCv71EXE, UPolyXv05_v6
Company: no certificate found
Created at: 2011-06-08 02:23:24

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):

regsvr32.exe:1572

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

ioy.exe:1652

File activity

The process regsvr32.exe:1572 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\ioy.exe (1633 bytes)

The process ioy.exe:1652 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\q2577r41742y8135 (459 bytes)
%Documents and Settings%\%current user%\Templates\q2577r41742y8135 (459 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\q2577r41742y8135 (459 bytes)
%System%\wbem\Logs\wbemprox.log (4850 bytes)
%Documents and Settings%\All Users\Application Data\q2577r41742y8135 (459 bytes)

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

C:\f9e9dc3c041983ed05e9c19170711086.dll (0 bytes)

Registry activity

The process regsvr32.exe:1572 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" = "C6 FF B3 8A 8D 2D 90 E7 2E CB 21 24 1F D7 40 EE"

[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 ioy.exe:1652 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\ioy.exe -a %1 %*"

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

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

[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"

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

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

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

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

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

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

[HKCU\Software\Classes\exefile\DefaultIcon]
"(Default)" = "%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\ioy.exe -a %Program Files%\Internet Explorer\iexplore.exe"

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

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

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

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

[HKCU\Software\Microsoft\Windows]
"Identity" = "2284490446"

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

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

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "4C 63 9F 5E B0 D0 AE B7 DA 4D DE AB 7C 31 3A 7F"

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

[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"

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

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

[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]
"3736552479" = "%Documents and Settings%\%current user%\Local Settings\Application Data\ioy.exe"

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

Network activity (URLs)

URL	IP
hxxp://pifajeniwyt.com/1020000113
hxxp://cikipihigilani.com/1020000113

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):
   

   regsvr32.exe:1572
   

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\Application Data\ioy.exe (1633 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\q2577r41742y8135 (459 bytes)
   %Documents and Settings%\%current user%\Templates\q2577r41742y8135 (459 bytes)
   %Documents and Settings%\%current user%\Local Settings\Application Data\q2577r41742y8135 (459 bytes)
   %System%\wbem\Logs\wbemprox.log (4850 bytes)
   %Documents and Settings%\All Users\Application Data\q2577r41742y8135 (459 bytes)

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

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "3736552479" = "%Documents and Settings%\%current user%\Local Settings\Application Data\ioy.exe"
   
   [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.