Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Taskman' = '%HOMEPATH%\yoboci.exe'
Malicious functions:
Executes the following:
- '<SYSTEM32>\wermgr.exe' -queuereporting
- '<SYSTEM32>\svchost.exe'
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\yoboci.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\yoboci.exe
Network activity:
UDP:
- DNS ASK dn#.##ftncsi.com
- DNS ASK uo###.agesonest.com
- DNS ASK fi##.prince.kz
- DNS ASK ei#.#olks.su
- DNS ASK lo##.#etrule.com
- DNS ASK mu###.agesask.net
- 'any':22331
- 'lo##.#etrule.com':22331
