MD5: 361fc97876be79e272f8f64ec3cd7930
SHA1: a684c5d9df8fc6ed7670efd897c2e7d39eacf594
SHA256: 54dde79b7b2d63104fc8e9609c2c0e34ece68257d728c6722af4ff71d5c84ff1
SSDeep: 24576:R9iaZYUN 7Qlnyu0zzDHWYlCMOZN6KSSAfaJP/bCZfs:uhUN 7290zzDHHgZNDBV Vs
Size: 966656 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: MicrosoftVisualC; Armadillov171; MicrosoftVisualCv50v60MFC; MicrosoftVisualC50; UPolyXv05_v6
Company: no certificate found
Created at: 2012-12-15 08:05:29

Summary:

Worm. A program that is primarily replicating on networks or removable drives.

Payload

Process activity

The Worm creates the following process(es):

361fc97876be79e272f8f64ec3cd7930.exe:1048
reg.exe:1300
reg.exe:1960
reg.exe:924
reg.exe:1056

The Worm injects its code into the following process(es):

FB_1.tmp.exe:1848

File activity

The process 361fc97876be79e272f8f64ec3cd7930.exe:1048 makes changes in a file system.
The Worm creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\FB_1.tmp.exe (179 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\FB_2.tmp.msu (3840 bytes)

The process FB_1.tmp.exe:1848 makes changes in a file system.
The Worm creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\svchost.exe (161 bytes)
%Documents and Settings%\%current user%\Application Data\D7A0EB.ini (34 bytes)

Registry activity

The process 361fc97876be79e272f8f64ec3cd7930.exe:1048 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D7 91 D3 F5 13 0C 70 3A D7 D2 FF C0 E8 98 EE DD"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"FB_1.tmp.exe" = "FB_1.tmp"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

The Worm modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Worm modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Worm modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The process FB_1.tmp.exe:1848 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AF 9D 51 10 B0 EB 00 27 41 86 AB 71 A5 4F 12 F9"

[HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
"RC0BXB5MNH" = "July 25, 2013"

[HKCU\Software\VB and VBA Program Settings\SrvID\ID]
"RC0BXB5MNH" = "v1"

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

[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{1C9674AA-FFAF-44DD-BEFF-6DF7B3DBFEA9}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"

[HKCU\Software\Microsoft\Active Setup\Installed Components\{1C9674AA-FFAF-44DD-BEFF-6DF7B3DBFEA9}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run]
"F7AC-EAEE" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"F7AC-EAEE" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"F7AC-EAEE" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"

The process reg.exe:1300 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E2 10 4F 50 6E 9E 1A 40 51 0E 8C 36 E6 E9 2A 8B"

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"FB_1.tmp.exe" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\FB_1.tmp.exe:*:Enabled:Windows Messanger"

The process reg.exe:1960 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E1 08 C4 44 E0 D6 AA 9C 6F 0A 7F C3 F1 79 3A BB"

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\%Documents and Settings%\%current user%\Application Data]
"svchost.exe" = "%Documents and Settings%\%current user%\Application Data\svchost.exe:*:Enabled:Windows Messanger"

The process reg.exe:924 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B7 7A 8C 67 75 75 0E 17 D7 C6 F4 05 5A 25 01 97"

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

The process reg.exe:1056 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "19 A1 B0 D1 B1 47 C9 3A EC C8 80 37 E9 1E 6A 89"

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

Network activity (URLs)

No activity has been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer.

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):
   

   361fc97876be79e272f8f64ec3cd7930.exe:1048
   reg.exe:1300
   reg.exe:1960
   reg.exe:924
   reg.exe:1056

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

   %Documents and Settings%\%current user%\Local Settings\Temp\FB_1.tmp.exe (179 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\FB_2.tmp.msu (3840 bytes)
   %Documents and Settings%\%current user%\Application Data\svchost.exe (161 bytes)
   %Documents and Settings%\%current user%\Application Data\D7A0EB.ini (34 bytes)

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

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "F7AC-EAEE" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"
   
   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   "F7AC-EAEE" = "%Documents and Settings%\%current user%\Application Data\svchost.exe"

5. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
   
6. Reboot the computer.
   

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