MD5: 5004c2493cdaf66e1a5b21ef5ea9c86e
SHA1: a158cdaa91b543f302e9969ac7f49f82a26b21ca
SHA256: 95177a6c3c71f310a69d59ae24d9d3f26966e53011ebd332ab59aa64e65e0b0f
SSDeep: 12288:m3svdyDeA AB /jPLLd0m xkHsGXS53e2PHCS/KfG:asIDgAB rPPdkxA1XG3e1SB
Size: 538456 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2009-12-06 00:50:46
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:1980

File activity

The process %original file name%.exe:1980 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\nsf4.tmp\System.dll (11264 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\load_3.bmp (614 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\locate.dll (19456 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\dAg (167 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\back_dis.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\inetc3.dll (35840 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\decline.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\skip.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\gCD (6 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept2.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept3.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\trninj.txt (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\NSISdl.dll (14848 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\side.bmp (109464 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\nsDialogs.dll (9728 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\1clogo.bmp (146456 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept0.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\UAC.dll (13824 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\complist.txt (125 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept_disabled.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\close.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept1.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf3.tmp (1943196 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept.bmp (16640 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\back.bmp (16636 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\country[1].htm (6 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsa2.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\-1 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp (0 bytes)

Registry activity

The process %original file name%.exe:1980 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65324"

[HKCR\AppID\{C007DADD-132A-624C-088E-59EE6CF0711F}]
"id0" = "27012014"

[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" = "65324"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 2F 00 00 00 01 00 00 00 00 00 00 00"

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

[HKCU\Software\1ClickDownload]
"LastInstall0" = "30350079"
"LastInstall3" = "30350079"

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

"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{91167d45-103d-11db-8c91-806d6172696f}]
"BaseClass" = "Drive"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{91167d42-103d-11db-8c91-806d6172696f}]
"BaseClass" = "Drive"

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

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65324"

[HKCU\Software\1ClickDownload]
"UID" = "188689060"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65324"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DF F4 A6 7A 84 BA DD 01 EB CE CD 10 EE 6F 1A 6F"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{d8c0d8da-77bd-11e0-bb02-000c293bc0fd}]
"BaseClass" = "Drive"

[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\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{ebcf8d94-66db-11de-b228-806d6172696f}]
"BaseClass" = "Drive"

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

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan 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 Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Network activity (URLs)

URL	IP
hxxp://torrntvz.com/data.php?p=hdvidcodec	54.247.67.39
hxxp://torrntvz.com/ping.php?partner=ontv--err&product=hdvidcodec&build=18_4
hxxp://data.torntv.net/country.asp?st=-1&uid=188689060&tuid=3061758&sref=ONT_18-4_ontv--err&vmdt=|vm|pm|&bld=18J&cnt=ua	176.34.177.58
torntvz.net	54.247.67.39

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\nsf4.tmp\System.dll (11264 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\load_3.bmp (614 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\locate.dll (19456 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\dAg (167 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\back_dis.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\inetc3.dll (35840 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\decline.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\skip.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\gCD (6 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept2.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept3.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\trninj.txt (1 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\NSISdl.dll (14848 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\side.bmp (109464 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\nsDialogs.dll (9728 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\1clogo.bmp (146456 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept0.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\UAC.dll (13824 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\complist.txt (125 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept_disabled.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\close.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept1.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf3.tmp (1943196 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\accept.bmp (16640 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsf4.tmp\back.bmp (16636 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\country[1].htm (6 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.