Trojan.Generic.5119823 (BitDefender), Trojan:Win32/Alureon.DX (Microsoft), HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Alureon.dx.2 (v) (VIPRE), BackDoor.Tdss.4608 (DrWeb), Generic Dropper.va.gen.b (McAfee), Trojan.Gen (Symantec), Trojan.Win32.Tdss (Ikarus), Trojan.Generic.5119823 (FSecure), Cryptic.DSP (AVG), Win32:Alureon-KL [Rtk] (Avast), TROJ_TDSS.SMY (TrendMicro), Tdl4.YR (Lavasoft MAS)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 7366870f2cec55dcf330a894ba5010fd
SHA1: b0b7533685ae22122a94fde88de71eeff4708e8b
SHA256: d693d54aa5be7fad2405a3e1f38a7dc41850581002fcde7e2ae3b18da5bdc70f
SSDeep: 1536:kOog4Lc2CjPmz8P30NnigH7eSBvXe9RIoZJkiHqVsmE7gCzD6vnHnUz4aesJgV4L:kOHfdS6dgSSBv6Hgsh7gI6vnqlI4/zS
Size: 129536 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2010-10-30 08:30:02
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).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
%original file name%.exe:1608
The Trojan injects its code into the following process(es):
spoolsv.exe:1452
File activity
The process %original file name%.exe:1608 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\1.tmp (129536 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp (16384 bytes)
C:\ (4096 bytes)
The Trojan deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\2.tmp (0 bytes)
The process spoolsv.exe:1452 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 (4096 bytes)
%WinDir%\Temp\3.tmp (19968 bytes)
%WinDir%\Temp (8192 bytes)
The Trojan deletes the following file(s):
%WinDir%\Temp\3.tmp (0 bytes)
Registry activity
The process %original file name%.exe:1608 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C5 F6 DA 5B 3D 12 01 8A 8B BB 86 64 02 FE 20 9E"
[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1288416602"
[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\4.tmp,"
[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"Name" = "%original file name%.exe"
The process spoolsv.exe:1452 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\System\CurrentControlSet\Control\Print\Providers\hpfypexnvcdtiko]
"Name" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\2.tmp"
[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1208114401"
[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\4.tmp, , \??\%WinDir%\TEMP\5.tmp,"
[HKLM\System\CurrentControlSet\Services\ienwentiniwqvow]
"ImagePath" = "\??\%WinDir%\TEMP\3.tmp"
[HKLM\System\CurrentControlSet\Control\Print\Providers]
"Order" = "LanMan Print Services, Internet Print Provider, hpfypexnvcdtiko"
[HKLM\System\CurrentControlSet\Services\ienwentiniwqvow]
"Type" = "1"
[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"Name" = "spoolsv.exe"
The Trojan deletes the following registry key(s):
[HKLM\System\CurrentControlSet\Control\Print\Providers\hpfypexnvcdtiko]
[HKLM\System\CurrentControlSet\Services\ienwentiniwqvow]
[HKLM\System\CurrentControlSet\Services\ienwentiniwqvow\Enum]
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
No changes have been detected.
Rootkit activity
Using the driver "UNKNOWN" the Trojan controls loading executable images into a memory by installing the Load image notifier.
The Trojan intercepts DriverStartIO in a miniport driver of a hard drive controller (ATAPI) to handle request to its own files:
StartIo
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:1608
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (129536 bytes)
%WinDir%\Temp\3.tmp (19968 bytes) - Reboot the computer.