Nume:TR/Cosmu.pqi
Descoperit pe data de:16/04/2010
Tip:Troian
ITW:Da
Numar infectii raportate:Scazut spre mediu
Potential de raspandire:Scazut spre mediu
Potential de distrugere:Scazut spre mediu
Fisier static:Da
Marime:303.104 Bytes
MD5:ad10368d7dcc4bafa74199e61f1153df
Versiune IVDF:7.10.06.111 - Friday, April 16, 2010

 General Metoda de raspandire:
   • Functia autorun


Alias:
   •  Bitdefender: Trojan.Generic.3576196
   •  Panda: Trj/Nabload.DRP
   •  Eset: Win32/AutoRun.Agent.VS


Sistem de operare:
   • Windows 2000
   • Windows XP
   • Windows 2003


Efecte secundare:
   • Reduce setarile de securitate
   • Creeaza fisiere malware
   • Modificari in registri

 Fisiere Se copiaza in urmatoarele locatii:
   • C:\Program Files\Windows Common Files\Commgr.exe
   • %recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\WinSysApp.exe
   • C:\Program Files\Windows Alerter\WinAlert.exe
   • %unitate disc%\RECYCLER\EeStNiO.exe



Sunt create fisierele:

– %unitate disc%\autorun.inf Acesta este un fisier text care nu prezinta pericol si are urmatorul continut:
   • %cod care ruleaza fisierul malitios%

– %recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\wndsvc.dll
– %recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\info
– %recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\bnf0342



Incearca sa execute urmatoarele fisiere:

– Numele fisierului:
   • "C:\Program Files\Windows Common Files\Commgr.exe"


– Numele fisierului:
   • "C:\Program Files\Windows Alerter\WinAlert.exe"


– Numele fisierului:
   • "%recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\WinSysApp.exe"

 Registrii sistemului Urmatoarele chei sunt adaugate in registri pentru a rula procesul la repornirea sistemului:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "WindowMessenger"="%recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\WinSysApp.exe"
   • "Windows Alerter"="C:\Program Files\Windows Alerter\WinAlert.exe"
   • "Windows Common Files Manager"="C:\Program Files\Windows Common Files\Commgr.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "WindowMessenger"="%recycle bin%\X-1-5-21-1960408961-725345543-839522115-1003\WinSysApp.exe"
   • "Windows Alerter"="C:\Program Files\Windows Alerter\WinAlert.exe"
   • "Windows Common Files Manager"="C:\Program Files\Windows Common Files\Commgr.exe"



Urmatoarea cheie din registri este modificata:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
   Noua valoare:
   • "Hidden"=dword:0x00000002
   • "HideFileExt"=dword:0x00000001
   • "ShowSuperHidden"=dword:0x00000000
   • "SuperHidden"=dword:0x00000000

 Terminarea proceselor Urmatorul proces este oprit:
   • taskmgr.exe


 Detaliile fisierului Compresia fisierului:
Pentru a ingreuna detectia si a reduce marimea fisierului, este folosit un program de compresie runtime.

Description inserted by Petre Galan on Tuesday, July 13, 2010
Description updated by Petre Galan on Tuesday, July 20, 2010

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