Nume:Worm/Koobface.cju
Descoperit pe data de:10/11/2009
Tip:Vierme
ITW:Da
Numar infectii raportate:Scazut
Potential de raspandire:Scazut
Potential de distrugere:Scazut spre mediu
Fisier static:Da
Marime:40.960 Bytes
MD5:35db3190c235dcbfc5e235e632599f48
Versiune IVDF:7.01.06.216 - Tuesday, November 10, 2009

 General Alias:
   •  Mcafee: W32/Koobface.worm.gen.s
   •  Panda: W32/Koobface.HC.worm
   •  Eset: Win32/Koobface.NCK
   •  Bitdefender: Worm.Generic.98708


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


Efecte secundare:
   • Descarca un fisier malware
   • Creeaza fisiere malware
   • Modificari in registri

 Fisiere Se copiaza in urmatoarea locatie:
   • %WINDIR%\ld15.exe



Sterge copia initiala a virusului.



Sterge urmatoarele fisiere:
   • C:\vx\sd.dat
   • %WINDIR%\dxxdv34567.bat



Este creat fisierul:

– %WINDIR%\dxxdv34567.bat Fisierul este executat dupa ce a fost creat. Fisierul batch este folosit pentru stergerea unui fisier.



Incearca sa descarce un fisier:

– Adresele sunt urmatoarele:
   • http://ita-eg.com/**********/?action=ldgen&v=15
   • http://cleopatra.com.cy/**********/?action=ldgen&v=15
   • http://www.preferredflood.com/**********/?action=ldgen&v=15
   • http://videoleverage.com/**********/?action=ldgen&v=15
   • http://www.electronicstoday.org/**********/?action=ldgen&v=15
   • http://daveshieldsmedia.com/**********/?action=ldgen&v=15
   • http://www.redcode.rs/**********/?action=ldgen&v=15
   • http://abbottpainting.com/**********/?action=ldgen&v=15
   • http://nippontrading.se/**********/?action=ldgen&v=15
   • http://www.thedeathsquadmovement.com/**********/?action=ldgen&v=15
   • http://sigmai.co.il/**********/?action=ldgen&v=15
   • http://rowanhenderson.com/**********/?action=ldgen&v=15
   • http://www.electronicstoday.org/**********/?action=ldgen&a=544453496&v=15&l=1000&c_fb=0&c_ms=0&c_hi=0&c_tw=0&c_be=0&c_tg=0&c_nl=0
   • http://mm2dc.com/**********/?action=ldgen&v=15
   • http://stopreporter.com/**********/?action=ldgen&v=15
   • http://www.alkhoei.org/**********/?action=ldgen&v=15
   • http://www.ceutelcottage.nl/**********/?action=ldgen&v=15
   • http://veggiemama.com.hk/**********/?action=ldgen&v=15
   • http://www.folcon-mex.com/**********/?action=ldgen&v=15
   • http://lagrucostruzioni.it/**********/?action=ldgen&v=15
   • http://davedolbin.com/**********/?action=ldgen&v=15
   • http://liezerserv.com/**********/?action=ldgen&v=15
   • http://rjupnahaed.kopavogur.is/**********/?action=ldgen&v=15
   • http://exceleronmedical.com/**********/?action=ldgen&v=15
   • http://static.e-lady.pl/**********/?action=ldgen&v=15
   • http://delawyers.com/**********/?action=ldgen&v=15
Analiza ulterioara a relevat ca si acest fisier este malware.

 Registrii sistemului Una din urmatoarele valori este adaugata in registri pentru pornirea automata a procesului dupa reboot:

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "sysldtray"="%WINDIR%\ld15.exe"



Urmatoarea cheie din registri este modificata:

– [HKLM\SYSTEM\CurrentControlSet\Hardware Profiles\0001\Software\
   Microsoft\windows\CurrentVersion\Internet Settings]
   Noua valoare:
   • "ProxyEnable"=dword:0x00000000

 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 Friday, March 12, 2010
Description updated by Petre Galan on Friday, March 12, 2010

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