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TR/TComBill.O - Trojan
In alte limbi
Scurta descriere
Descriere completa
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Nume:
TR/TComBill.O
Descoperit pe data de:
21/04/2006
Tip:
Troian
ITW:
Nu
Numar infectii raportate:
Scazut
Potential de raspandire:
Scazut
Potential de distrugere:
Mediu
Fisier static:
Da
Marime:
10.240 Bytes
MD5:
79a56b6e3fdaf3d7fa6950e754cfa348
Versiune VDF:
6.34.00.214
General
Metoda de raspandire:
• Nu are rutina proprie de raspandire
Alias:
• Kaspersky: Trojan-Downloader.Win32.Small.coq
• TrendMicro: TROJ_DLOADER.DAY
• Bitdefender: Trojan.Downloader.Small.COQ
Sistem de operare:
• Windows 2000
• Windows XP
• Windows 2003
Efecte secundare:
• Creeaza un fisier malware
• Modificari in registri
• Posibilitatea accesului neautorizat la computer
Fisiere
Sterge copia initiala a virusului.
Este creat fisierul:
–
%SYSDIR%
\sysldr.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/TComBill.O.2
Registrii sistemului
Valoarea urmatoarei chei este stearsa din registri:
– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• sysldr
Se adauga in registrii sistemului:
– [HKCR\CLSID\{
%CLSID generate%
}\InprocServer32]
• @ = sysldr.dll
Urmatoarea cheie din registri este modificata:
– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\
ShellServiceObjectDelayLoad]
Noua valoare:
• sysldr = {
%CLSID generate%
}
Backdoor
Servere contactate:
Unul dintre:
• http://dynafilmes.com.br/imagens/**********
• http://soloaguia.com/imagens/**********
• http://www.chiefmar.com/Images/**********
• http://www.computerideasrl.it/immagini/**********
• http://www.barpel.it/images/**********
Astfel se pot transmite informatii si se poate obtine control la distanta. Aceasta se face printr-o interogare HTTP GET intr-un script PHP.
Trimte informatii despre:
• Statusul actual al malware-ului
Posibilitati de control la distanta:
• descarcare fisier
• executarea unui fisier
Injectarea codului malware in alte procese
– Injecteaza fisierul urmator intr-un proces:
%SYSDIR%
\sysldr.dll
Numele procesului:
• svchost.exe
Detaliile fisierului
Compresia fisierului:
Pentru a ingreuna detectia si a reduce marimea fisierului, este folosit un program de compresie runtime.
Pentru o descriere scurta click
aici
.
Descriere introdusa de Andrei Gherman la Tue, 25 Apr 2006 15:17 (GMT+1)
Descriere actualizata de Andrei Gherman la Tue, 25 Apr 2006 15:53 (GMT+1)
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