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Win32.HLLW.MyBot.10043

Added to the Dr.Web virus database: 2013-03-29

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Service Agent' = 'oth.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'Windows Service Agent' = 'oth.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Service Agent' = 'oth.exe'
Malicious functions:
Creates and executes the following:
  • <SYSTEM32>\oth.exe 284 "<Full path to virus>"
Modifies file system :
Creates the following files:
  • <SYSTEM32>\oth.exe
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\oth.exe
Deletes itself.
Network activity:
Connects to:
  • '25#.#55.255.255':6667
  • 'xl####x.zapto.org':6667
UDP:
  • DNS ASK xl####x.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'mIRC' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''