Full description

Virus:	TR/Spy.ZBot.RS.1
Date discovered:	07/04/2009
Type:	Trojan
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Low
Damage Potential:	Low to medium
Static file:	Yes
File size:	192.512 Bytes
MD5 checksum:	948ba9e36338cfd2a789b8a49094fefb
VDF version:	7.01.03.22
IVDF version:	7.01.03.23 - Tuesday, April 7, 2009

General Aliases:
   • Kaspersky: Trojan-Spy.Win32.SpyEyes.hry
   • Bitdefender: Trojan.Generic.KD.230624
   • GData: Trojan.Generic.KD.230624
   • DrWeb: Trojan.DownLoader3.1932

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Drops malicious files
   • Registry modification
   • Steals information

Files It copies itself to the following location:
• C:\svchostxxx.exe\svchostxxx.exe

It deletes the initially executed copy of itself.

The following file is created:

– C:\svchostxxx.exe\config.bin

It tries to execute the following file:

– Filename:
• C:\svchostxxx.exe\svchostxxx.exe

Registry The following registry key is added in order to run the process after reboot:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "svchostxxx.exe"="C:\svchostxxx.exe\svchostxxx.exe"

The values of the following registry key are removed:

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

The following registry keys are added:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
   • "WarnOnIntranet"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Zones\0]
   • "1409"=dword:0x00000003

The following registry keys are changed:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Zones\1]
   New value:
   • "1406"=dword:0x00000000
   • "1409"=dword:0x00000003
   • "1609"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Zones\0]
   New value:
   • "1406"=dword:0x00000000
   • "1609"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Zones\2]
   New value:
   • "1406"=dword:0x00000000
   • "1409"=dword:0x00000003
   • "1609"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Lockdown_Zones\4]
   New value:
   • "1406"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Lockdown_Zones\1]
   New value:
   • "1406"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Lockdown_Zones\2]
   New value:
   • "1406"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Lockdown_Zones\3]
   New value:
   • "1406"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
   New value:
   • "EnableHttp1_1"=dword:0x00000000
   • "MigrateProxy"=dword:0x00000001
   • "ProxyEnable"=dword:0x00000000
   • "ProxyHttp1.1"=dword:0x00000000
   • "WarnOnPost"=hex:00,00,00,00
   • "WarnOnPostRedirect"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Zones\3]
   New value:
   • "1406"=dword:0x00000000
   • "1409"=dword:0x00000003
   • "1609"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   Zones\4]
   New value:
   • "1406"=dword:0x00000000
   • "1409"=dword:0x00000003
   • "1609"=dword:0x00000000

Backdoor Contact server:
The following:
• http://cnc0098510m.cz.cc/mmmmmmaaaaaa/**********?guid=%character string%&ver=%number%&stat=%character string%&ie=%character string%&os=%character string%&ut=%character string%&cpu=%number%&ccrc=%character string%&md5=%character string%

Stealing It tries to steal the following information:
– Recorded passwords used by the AutoComplete function

– Passwords from the following programs:
• Mozilla Firefox
• Internet Explorer

Injection – It injects itself as a remote thread into a process.

Process name:
• explorer.exe

– It injects itself as a remote thread into a process.

It is injected into all processes.

Miscellaneous Checks for an internet connection by contacting the following web site:
   • http://www.microsoft.com/

Mutex:
It creates the following Mutexes:
   • __svxxxx__
   • __SPYNET_REPALREADYSENDED__

File details Programming language:
The malware program was written in MS Visual C++.

Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

説明の挿入者 Petre Galan の 2011年7月12日火曜日
説明の更新者 Petre Galan の 2011年7月12日火曜日

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