Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Classes\Applications\uTorrent.exe\shell\open\command] '' = '"%APPDATA%\uTorrent\uTorrent.exe" "%1"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'uTorrent' = '%APPDATA%\uTorrent\uTorrent.exe /MINIMIZED'
Modifies file system
Creates the following files
- %TEMP%\aut76c4.tmp
- %TEMP%\mlhgijm
- %TEMP%\aut77af.tmp
- %APPDATA%\utorrent\utorrent.lng
- %TEMP%\aut782d.tmp
- %CommonProgramFiles(x86)%\setup.exe
- %TEMP%\utt7cbd.tmp.new
- %APPDATA%\microsoft\crypto\rsa\s-1-5-21-1960123792-2022915161-3775307078-1001\1f91d2d17ea675d4c2c3192e241743f9_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
- %APPDATA%\utorrent\updates.dat
- %APPDATA%\utorrent\updates\3.3.2_30488.exe
- %APPDATA%\utorrent\settings.dat.new
- %APPDATA%\utorrent\utorrent.exe
- %APPDATA%\microsoft\windows\start menu\Вµtorrent.lnk
- %HOMEPATH%\desktop\Вµtorrent.lnk
- %APPDATA%\microsoft\internet explorer\quick launch\Вµtorrent.lnk
Sets the 'hidden' attribute to the following files
- %CommonProgramFiles(x86)%\setup.exe
Deletes the following files
- %TEMP%\aut76c4.tmp
- %TEMP%\mlhgijm
- %TEMP%\aut77af.tmp
- %TEMP%\aut782d.tmp
- %TEMP%\utt7cbd.tmp
Moves the following files
- from %TEMP%\utt7cbd.tmp.new to %TEMP%\utt7cbd.tmp
- from %APPDATA%\utorrent\settings.dat.new to %APPDATA%\utorrent\settings.dat
- from %APPDATA%\utorrent\settings.dat to %APPDATA%\utorrent\settings.dat.old
Substitutes the following files
- %APPDATA%\utorrent\settings.dat.new
- %APPDATA%\utorrent\settings.dat
Network activity
Connects to
- 'microsoft.com':80
- 'be###.utorrent.com':80
- 'up####.utorrent.com':80
TCP
HTTP GET requests
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
- http://up####.utorrent.com/installstats.php?cl##############################################################################################################
- http://up####.utorrent.com/installstats.php?cl##################################################################################################################################
UDP
- DNS ASK microsoft.com
- DNS ASK be###.utorrent.com
- DNS ASK ap##.#ittorrent.com
- DNS ASK up####.utorrent.com
Miscellaneous
Searches for the following windows
- ClassName: 'ВµTorrent4823DF041B09' WindowName: ''
Creates and executes the following
- '%CommonProgramFiles(x86)%\setup.exe' /S
