Win32.HLLW.Autoruner1.16484
Added to the Dr.Web virus database:
2012-05-26
Virus description added:
2012-06-16
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nymuac' = '%HOMEPATH%\nymuac.exe /R'
Creates the following files on removable media:
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\nymuac.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\nymuacx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\nymuac.exe
- <Drive name for removable media>:\nymuacx.exe
- %HOMEPATH%\nymuac.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1253.com':8000
UDP:
- DNS ASK ns#.##ayer1253.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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