Nume:TR/Drop.Agent.avam
Descoperit pe data de:26/10/2009
Tip:Troian
Subtip:Dropper
ITW:Da
Numar infectii raportate:Mediu
Potential de raspandire:Scazut
Potential de distrugere:Scazut spre mediu
Fisier static:Da
Marime:745.472 Bytes
MD5:0C59eadc2628f66819ee0F76f5eeb910
Versiune IVDF:7.01.04.220 - Saturday, July 11, 2009

 General Metoda de raspandire:
   • Nu are rutina proprie de raspandire


Alias:
   •  Kaspersky: Trojan.Win32.Obfuscated.whl
   •  Sophos: W32/IRCBot-ADJ
   •  Panda: Bck/Mircbased.BT
   •  Eset: IRC/Cloner.BX trojan
   •  Bitdefender: Trojan.AgentMB.ITGL3168337


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


Efecte secundare:
   • Inchide aplicatiile de securitate
   • Creeaza fisiere
   • Creeaza fisiere malware
   • Reduce setarile de securitate
   • Modificari in registri
   • Posibilitatea accesului neautorizat la computer

 Fisiere Se copiaza in urmatoarele locatii:
   • %PROGRAM FILES%\Microsoft Office\OFFICE11\ WINWORD.EXE
   • %PROGRAM FILES%\Microsoft Office\OFFICE11\services.exe
   • %Start Menu%\Programs\Startup\Adobe Gamma Loader.com



Creeaza urmatorul director:
   • %PROGRAM FILES%\Microsoft Office\OFFICE11



Sunt create fisierele:

– %PROGRAM FILES%\Microsoft Office\OFFICE11\Drvics32.dll Contine parametri folositi de malware.
– %PROGRAM FILES%\Microsoft Office\OFFICE11\hjwgsd.dll Contine parametri folositi de malware.
– %PROGRAM FILES%\Microsoft Office\OFFICE11\jwiegh.dll Contine parametri folositi de malware.
– %PROGRAM FILES%\Microsoft Office\OFFICE11\remote.ini Contine parametri folositi de malware.
– %PROGRAM FILES%\Microsoft Office\OFFICE11\ruimsbbe.dll Contine parametri folositi de malware.
– %PROGRAM FILES%\Microsoft Office\OFFICE11\control.ini Contine parametri folositi de malware.
– %PROGRAM FILES%\Microsoft Office\OFFICE11\PUB60SP.mrc Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: WORM/IrcBot.7385.A

– %PROGRAM FILES%\Microsoft Office\OFFICE11\yofc.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: IRC/Zapchast.YF

– %PROGRAM FILES%\Microsoft Office\OFFICE11\smss.exe Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Spy.576628.2

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

– [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Shell"="Explorer.exe, %PROGRAM FILES%\Microsoft Office\OFFICE11\services.exe"



Valorile urmatoarei chei sunt sterse din registrii sistemului:

–  [HKCU\Software\Microsoft\windows\CurrentVersion\Internet Settings]
   • "ProxyServer"
   • "ProxyOverride"
   • "AutoConfigURL"

–  [HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\
   %all registry keys%]
–  [HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\
   %all registry keys%]


Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKCR\exefile]
   • "NeverShowExt"=""

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\Acha.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\registry.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\AmyMastura.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\csrsz.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\SMSSS.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\lsasc.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\BabyRina.exe]
   • "Debugger"="cmd.exe /c del"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\wscript.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\cscript.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Security Center\Svc]
   • "AntiVirusDisableNotify"=dword:00000001
   • "AntiVirusOverride"=dword:00000001
   • "FirewallDisableNotify"=dword:00000001
   • "FirewallOverride"=dword:00000001
   • "FirstRunDisabled"=dword:00000001
   • "UpdatesDisableNotify"=dword:00000001
   • "UacDisableNotify"=dword:00000001

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
   • "EnableLUA"=dword:00000000



Urmatoarele chei din registri sunt modificate:

Diverse setari in Explorer:
– [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
   Noua valoare:
   • "ShowSuperHidden"="0x0"
   • "SuperHidden"="0x0"

Diverse setari in Explorer:
– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\
   Folder\SuperHidden]
   Noua valoare:
   • "CheckedValue"=dword:00000000
   • "UncheckedValue"=dword:00000000
   • "DefaultValue"=dword:00000000

– [HKLM\SOFTWARE\Microsoft\Security Center]
   Noua valoare:
   • "AntiVirusDisableNotify"=dword:00000001
   • "FirewallDisableNotify"=dword:00000001
   • "UpdatesDisableNotify"=dword:00000001
   • "AntiVirusOverride"=dword:00000001
   • "FirewallOverride"=dword:00000001
   • "FirstRunDisabled"=dword:00000001
   • "UacDisableNotify"=dword:00000001

– [HKLM\SYSTEM\CurrentControlSet\Services\wuauserv]
   Noua valoare:
   • "Type"=dword:00000004
   • "Start"=dword:00000004

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess]
   Noua valoare:
   • "Type"=dword:00000004
   • "Start"=dword:00000004

– [HKLM\SYSTEM\CurrentControlSet\Services\WinDefend]
   Noua valoare:
   • "Type"=dword:00000004
   • "Start"=dword:00000004

 IRC Pentru a trimite informatii si pentru a fi controlat se conecteaza la serverul IRC:

Server: irc.dal.net
Port: 6667
Nick: Gold_girXls

 Alte informatii  Cauta o conexiune Internet, contactand urmatoarele site-uri web:
   • www.tourism.gov.my
   • www.miti.gov.my
   • www.putera.com

 Tehnologie Rootkit  Ascunde urmatoarele:
– Propriile fisiere

 Detaliile fisierului Limbaj de programare:
 Limbaj de programare folosit: Visual Basic.

Description inserted by Raluca Georgescu on Monday, October 26, 2009
Description updated by Andrei Ivanes on Tuesday, October 27, 2009

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