TR/Agent.NL.21 - Trojan

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Statistici

Nume:	TR/Agent.NL.21
Descoperit pe data de:	11/09/2006
Tip:	Troian
ITW:	Nu
Numar infectii raportate:	Scazut
Potential de raspandire:	Scazut
Potential de distrugere:	Mediu
Fisier static:	Da
Marime:	82.944 Bytes
MD5:	4e19ffc16eaca8513df29d1489e69396
Versiune VDF:	6.35.01.208
Versiune IVDF:	6.35.01.212

General Alias:
   • Kaspersky: Trojan.Win32.Agent.nl

Sistem de operare:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP

Efecte secundare:
   • Blocheaza accesul la website-uri ale firmelor de securitate
   • Modificari in registri
   • Posibilitatea accesului neautorizat la computer

Registrii sistemului Urmatoarea cheie este adaugata in registri pentru a rula procesul la repornirea sistemului:

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   • "Explorer 2238"=%directorul de activare malware%\%fisier executat%

Valorile urmatoarelor chei sunt sterse din registrii sistemului:

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DCOM Server
– HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DCOM Server

Urmatoarele chei sunt adaugate in registrii sistemului:

– HKLM\SOFTWARE\Classes\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304BB2238}\
   InProcServer32
   • "(Default)""=%directorul de activare malware%\%fisier executat%
   • "ThreadingModel"="Apartment"

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\
   SharedTaskScheduler
   • "{2C1CD3D7-86AC-4068-93BC-A02304BB2238}"="DCOM Server 2238"

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\
   ShellServiceObjectDelayLoad
   • "DCOM Server 2238"="{2C1CD3D7-86AC-4068-93BC-A02304BB2238}"

Fisiere host Fisierul

– In acest caz inregistrarile existente raman nemodificate.

– Accesul la urmatoarele domenii este blocat:
   • www.trendmicro.com; rads.mcafee.com; customer.symantec.com;
      liveupdate.symantec.com; us.mcafee.com; updates.symantec.com;
      www.nai.com; secure.nai.com; dispatch.mcafee.com; download.mcafee.com;
      www.my-etrust.com; mast.mcafee.com; ca.com; www.ca.com;
      networkassociates.com; www.networkassociates.com; avp.com;
      www.kaspersky.com; www.avp.com; downloads4.kaspersky-labs.com;
      downloads3.kaspersky-labs.com; downloads2.kaspersky-labs.com;
      downloads1.kaspersky-labs.com; www.f-secure.com; viruslist.com;
      www.viruslist.com; liveupdate.symantecliveupdate.com; www.mcafee.com;
      sophos.com; www.sophos.com; securityresponse.symantec.com;
      www.symantec.com

Backdoor Deschide portul

– %fisier executat% port TCP aleator

Servere contactate:
Urmatorul:
   • 208.66.195**********:2238

Posibilitati de control la distanta:
    • dezactivare DCOM
    • descarcare fisier
    • trimitere email-uri

Alte informatii Mutex:
Creeaza urmatorii mutecsi:
• hs5pdllv42238
• hs5p_av_mutex

Detaliile fisierului Limbaj de programare:
Limbaj de programare folosit: C (compilat cu Microsoft Visual C++).

Compresia fisierului:
Pentru a ingreuna detectia si a reduce marimea fisierului, este folosit urmatorul program de arhivare:
• UPX

Pentru o descriere scurta click aici.

Descriere introdusa de Bogdan Iliuta la Mon, 02 Oct 2006 16:12 (GMT+1)
Descriere actualizata de Bogdan Iliuta la Fri, 27 Oct 2006 09:14 (GMT+1)

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