MD5: 461eba4d12e62023d94ce5544d047077
SHA1: ee19d54ff2cb4487af23a78b0f39528e99bab019
SHA256: caa1641160e6e26409a470d840a2246550ecc9401f572a0ce3a19ce31469c248
SSDeep: 6144:Jj7hYhJ0vIlQn0nyyRjvevhqxL/SAfM4SqJq2:ZNYhJhw0p9mvhqxfM
Size: 210944 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: MicrosoftVisualC; UPolyXv05_v6; NETexecutable
Company: StarApp
Created at: 2013-07-09 08:09:14

Summary:

Packed. A packed file can be a compressed and/or encrypted in a manner that prevents matching the memory image of that file and the actual file on disk. Sometimes used for copy protection, packers are often used to make Spyware less easy to analyze/detect.

Payload

No specific payload has been found.

Process activity

The Packed creates the following process(es):

461eba4d12e62023d94ce5544d047077.exe:1268

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

461eba4d12e62023d94ce5544d047077.exe:968

File activity

The process 461eba4d12e62023d94ce5544d047077.exe:968 makes changes in a file system.
The Packed creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\WindowsDriver\csrss.exe (41160 bytes)

Registry activity

The process 461eba4d12e62023d94ce5544d047077.exe:1268 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CA 01 CD 77 F3 FF 45 FB 76 97 C3 EF 39 EA DE 0A"

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

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

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

The process 461eba4d12e62023d94ce5544d047077.exe:968 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CD 9B 11 BD EC FB 7E 5B 35 B0 0E 4F 37 69 C6 64"

[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"

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

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

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Application Data\WindowsDriver]
"csrss.exe" = "Origin"

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

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

[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"

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

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

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

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

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

The Packed 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"

Network activity (URLs)

URL	IP	Country
hxxp://198.23.167.160/sil1001/UFA.exe (Malicious)
mining.eligius.st	64.150.177.185

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):
   

   461eba4d12e62023d94ce5544d047077.exe:1268
   

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

   %Documents and Settings%\%current user%\Application Data\WindowsDriver\csrss.exe (41160 bytes)

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

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "WindowsDriver" = "%Documents and Settings%\%current user%\Application Data\WindowsDriver\vcsrss.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.