MD5: 4684f726a3b3fce9bc8b4c579f980811
SHA1: 2e9c86738fd2a7f2d77c96ae8248010b6a633523
SHA256: bd2d22daf59bc4e3aa68d76f12cd063d4a99de83bcf56fe3d6730e9c7b8e1ceb
SSDeep: 1536:Hf4exGDkeZ4mOoSgJEAJJGxc0aCCPU5Bf7i1sCyLBTzDbuS:/4eYZ4 1JXJJAdsUPzi1srLsS
Size: 81082 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2009-06-19 00:33:32
Analyzed on: WindowsXP SP3 32-bit

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):
No processes have been created.
The Trojan injects its code into the following process(es):

%original file name%.exe:832

File activity

The process %original file name%.exe:832 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\NSISdl.dll (14 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\me.ini (636 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\BaiduAn_Setup_1.0.567.829_Sid_80158_Silent_Defense.exe (378001 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsq1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\me.ini.log (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp (0 bytes)

Registry activity

The process %original file name%.exe:832 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5C FD AD 05 58 92 18 50 8D 9D 20 0D 49 F4 2D C6"

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

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Â̶¹ä¯ÀÀÆ÷]
"DisplayName" = "Â̶¹ä¯ÀÀÆ÷ 1.0.0.0"

[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"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Â̶¹ä¯ÀÀÆ÷]
"Publisher" = "a116"
"DisplayVersion" = "1.0.0.0"

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

[HKCU\Software\Microsoft\Internet Explorer\Main]
"Start Page" = "http://www.p100.pw"

[HKLM\SOFTWARE\Microsoft\Internet Explorer\Main]
"Start Page" = "http://www.p100.pw"

Network activity (URLs)

URL	IP
hxxp://h5.xjtj.org/open/open.ini?name=%original file name%.exe&ini=me.ini (SURICATA HTTP invalid content length field in response )	222.216.190.64
hxxp://h5.xjtj.org/setup/?name=%original file name%.exe&mac=00-0C-29-7C-CD-1F&md5=&ini=me.ini&v=1.0.0.0
down.begrp.org	222.186.60.12

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):No processes have been created.
2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:
   

   %Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\NSISdl.dll (14 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\System.dll (11 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsv2.tmp\me.ini (636 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\BaiduAn_Setup_1.0.567.829_Sid_80158_Silent_Defense.exe (378001 bytes)

4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
5. Reboot the computer.
   

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