Win32.HLLW.Autohit.15976
Added to the Dr.Web virus database:
2016-07-12
Virus description added:
2016-07-12
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe csrcs.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'csrcs' = '<SYSTEM32>\csrcs.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Executes the following:
- '<SYSTEM32>\ping.exe' -n 5 -w 250 127.0.0.1
- '<SYSTEM32>\cmd.exe' /c %TEMP%\suicide.bat
- '<SYSTEM32>\csrcs.exe'
Modifies file system:
Creates the following files:
- %TEMP%\aut2.tmp
- %TEMP%\spkiaje
- %TEMP%\suicide.bat
- %TEMP%\aut1.tmp
- %TEMP%\iyzqaja
- <SYSTEM32>\csrcs.exe
Sets the 'hidden' attribute to the following files:
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\spkiaje
- %TEMP%\aut1.tmp
- %TEMP%\iyzqaja
Deletes itself.
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