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Win32.Yazzz.2
Added to the Dr.Web virus database:
2014-11-01
Virus description added:
2014-11-10
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'atitool' = '%APPDATA%\pwrwin.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'atitool' = '%APPDATA%\pwrwin.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yazzz' = '%TEMP%\ctxmon.exe'
Malicious functions:
Creates and executes the following:
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
%TEMP%\Testaware\OSDM\Music.tmp
%APPDATA%\pwrwin.exe
%TEMP%\ctxmon.exe
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
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