Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Card Background Remote Tracking Source' = '<SYSTEM32>\clysftn.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\clysftn.exe
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Wired DLL Firewall Drive Server] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- Windows Security Center
Creates and executes the following:
- '%WINDIR%\Temp\epioywc6nwpfwk.exe' -r 33265 tcp
- '%WINDIR%\Temp\epioywc7cwwfwk.exe' -r 42169 tcp
- '<SYSTEM32>\lqpjkngywn.exe' "<SYSTEM32>\clysftn.exe"
- '%TEMP%\epioywc6032fwyttklnbz.exe'
- '<SYSTEM32>\clysftn.exe'
Modifies file system :
Creates the following files:
- <SYSTEM32>\lrylrktkgqs\run
- <SYSTEM32>\lrylrktkgqs\rng
- <SYSTEM32>\lrylrktkgqs\cfg
- %WINDIR%\Temp\epioywc7cwwfwk.exe
- %WINDIR%\Temp\epioywc6nwpfwk.exe
- %TEMP%\epioywc6032fwyttklnbz.exe
- <SYSTEM32>\lrylrktkgqs\tst
- <SYSTEM32>\lrylrktkgqs\etc
- <SYSTEM32>\lqpjkngywn.exe
- <SYSTEM32>\clysftn.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\lqpjkngywn.exe
- <SYSTEM32>\clysftn.exe
Deletes the following files:
- %WINDIR%\Temp\epioywc6nwpfwk.exe
- %WINDIR%\Temp\epioywc7cwwfwk.exe
- %TEMP%\epioywc6032fwyttklnbz.exe
- <DRIVERS>\etc\hosts
Substitutes the HOSTS file.
Network activity:
Connects to:
- 'sp###aguga.com':80
- 'oi###agyta.com':80
TCP:
HTTP GET requests:
- sp###aguga.com/forum/search.php?me#######################################
- oi###agyta.com/forum/search.php?me#######################################
UDP:
- DNS ASK ja###uter.com
- DNS ASK go#####everytime.com
- DNS ASK oi###agyta.net
- DNS ASK el#####arimagine.com
- DNS ASK ma######elemelefresh.com
- DNS ASK oi###agyta.com
- DNS ASK sp###aguga.com
- DNS ASK pu#####vibrations.com
- '23#.#55.255.250':1900