MD5: 275c091762aca3db4791fd4fb9541fda
SHA1: b3de399740b97d8746a6b11428f2d59a4ca0fa40
SHA256: 8197ac7b1dd3f1264ae2ef7070a0711886316c8feac1dfca7c2be33a9748f3a1
SSDeep: 1536:vrRAuW6B9zZl51f0fJNx1IR3CwxEBr MGhEXSMk5MsYOg2TD6:hlH5lIJN7K3C4EkMGhxj5Mso2TD
Size: 106496 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: MingWin32GCC3x, UPolyXv05_v6
Company: WinterSoft
Created at: 2013-05-31 19:50:33

Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

svcnost.exe:1820
%original file name%.exe:1200
ctfmon.exe:1224

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

svcnost.exe:864

File activity

The process svcnost.exe:864 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\desktop.ini (9728 bytes)
%Documents and Settings%\%current user%\Application Data\ntuser.dat (55808 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Application Data\desktop.ini (0 bytes)

The process %original file name%.exe:1200 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%System%\drivers\etc\hosts (5915 bytes)

The Trojan deletes the following file(s):

%System%\drivers\etc\hosts (0 bytes)

Registry activity

The process svcnost.exe:864 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A6 AF 8E 78 7D 8E 4A 7E 93 EF 22 58 7E 13 8E B7"

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

[HKCU\Software\Microsoft\Internet Explorer\LowRegistry]
"SavedLegacySettingsML" = "32 32 34 35 34 39 39 32 39"

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\xqnqm1lwqymlfnehxxgzgfgixhxxagap2]
"svcnost.exe" = "%Documents and Settings%\%current user%\Application Data\xqnqm1lwqymlfnehxxgzgfgixhxxagap2\svcnost.exe:*:Enabled:ldrsoft"

The process %original file name%.exe:1200 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Windows Init" = "%Documents and Settings%\%current user%\Application Data\xqnqm1lwqymlfnehxxgzgfgixhxxagap2\svcnost.exe"

The process ctfmon.exe:1224 makes changes in the system registry.
The Trojan deletes the following value(s) in system registry:
The Trojan disables automatic startup of the application by deleting the following autorun value:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"

Network activity (URLs)

No activity has been detected.

HOSTS file anomalies

The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 5915 bytes in size. The following strings are added to the hosts file listed below:

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):
   

   svcnost.exe:1820
   %original file name%.exe:1200
   

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

   %Documents and Settings%\%current user%\Application Data\desktop.ini (9728 bytes)
   %Documents and Settings%\%current user%\Application Data\ntuser.dat (55808 bytes)
   %System%\drivers\etc\hosts (5915 bytes)

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

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "Windows Init" = "%Documents and Settings%\%current user%\Application Data\xqnqm1lwqymlfnehxxgzgfgixhxxagap2\svcnost.exe"

5. Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
   127.0.0.1 localhost
   
6. Reboot the computer.
   

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