Trojan.Generic.KD.37749 (BitDefender), Trojan:Win32/Alureon.CT (Microsoft), Trojan-Dropper.Win32.TDSS.gen (Kaspersky), Trojan.Win32.Alureon.h (v) (VIPRE), Trojan.MulDrop1.47206 (DrWeb), Trojan.Generic.KD.37749 (B) (Emsisoft), DNSChanger.as (McAfee), Trojan.Gen (Symantec), Trojan.Win32.Alureon (Ikarus), Trojan.Generic.KD.37749 (FSecure), Generic19.RXC (AVG), Win32:Trojan-gen (Avast), BKDR_TDSS.SMC (TrendMicro), Trojan.Generic.KD.37749 (AdAware), Tdl4.YR (Lavasoft MAS)Behaviour: Trojan-Dropper, Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: a5cb66464a9810c2d167254828974649
SHA1: f82bff372c45dd938946287ada310f3a71f329f9
SHA256: 517cd440d748fc29f77f466b0adc629981aa99fabd3676b8841a7599d8ee0198
SSDeep: 1536:5/koYAAyMznBWHXocQpDRl96FmIJ zQ1esxLRcmRBKMTDH6whI6QqD4IaV:C1PnBWHXocQpDfI0IJKIBRReMTDH3B6
Size: 100864 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: SetApp
Created at: 2010-09-16 14:20:10
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:1084
The Trojan injects its code into the following process(es):
spoolsv.exe:1444
File activity
The process spoolsv.exe:1444 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%WinDir%\Temp\4.tmp (41472 bytes)
The Trojan deletes the following file(s):
%WinDir%\Temp\4.tmp (0 bytes)
The process %original file name%.exe:1084 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\2.tmp (100864 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp (8192 bytes)
The Trojan deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\3.tmp (0 bytes)
Registry activity
The process spoolsv.exe:1444 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\System\CurrentControlSet\Services\mdritnxrpqfatfp]
"Type" = "1"
"ImagePath" = "\??\%WinDir%\TEMP\4.tmp"
[HKLM\System\CurrentControlSet\Control\Print\Providers]
"Order" = "LanMan Print Services, Internet Print Provider, tdl"
[HKLM\System\CurrentControlSet\Control\Print\Providers\tdl]
"Name" = "C:\DOCUME~1\test\LOCALS~1\Temp\3.tmp"
The Trojan deletes the following registry key(s):
[HKLM\System\CurrentControlSet\Services\mdritnxrpqfatfp\Enum]
[HKLM\System\CurrentControlSet\Control\Print\Providers\tdl]
[HKLM\System\CurrentControlSet\Services\mdritnxrpqfatfp]
The process %original file name%.exe:1084 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A5 62 C5 60 48 31 D1 E7 5B 32 B7 0D 65 75 D9 BB"
[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\test\LOCALS~1\Temp\5.tmp,"
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.
Using the driver ROOTKITPATH 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:1084
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%WinDir%\Temp\4.tmp (41472 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\2.tmp (100864 bytes) - Reboot the computer.
Static Analysis
VersionInfo
No information is available.
No information is available.
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 10829 | 11264 | 4.51611 | 4ce79431f30e88f3dbb387b16c5139c1 |
.tls | 16384 | 512 | 512 | 0.352222 | 58ad8b28b91aed0449b4806a462296c5 |
KDATA | 20480 | 836 | 1024 | 2.44624 | aa1139c7cf5e3cf644aa2edb22ee77d8 |
IMPORTS | 24576 | 2864 | 3072 | 3.28437 | c528b16db44315bd2dfb3bb101e791c7 |
.rsrc | 28672 | 82540 | 82944 | 5.37431 | 3b932cdc8f3eb52edc733593a316a90a |
.reloc | 114688 | 768 | 1024 | 2.3611 | bfaf27e1295ddc20c95023c9cc99ca93 |
Network Activity
Dropped from:
Downloaded by:
Similar by SSDeep:
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