Technical Information
Malicious functions
Searches for windows to
detect analytical utilities:
- ClassName: 'OLLYDBG', WindowName: ''
Modifies file system
Creates the following files
- %TEMP%\7e2747e1
- <Current directory>\yzm.dll
- <Current directory>\logs\public\08-13.log
- <Current directory>\gchelper.up
- <Current directory>\re.bat
Substitutes the following executable files
- <Full path to file>
Moves itself
- from <Full path to file> to <PATH_SAMPLE>_old.exe
Network activity
Connects to
- 'ga###.#iaodutools.com':41058
- 'up.###odutools.com':80
- 'gc######.##s-cn-shanghai.aliyuncs.com':443
TCP
HTTP GET requests
- http://up.###odutools.com/gg.html
Other
- 'gc######.##s-cn-shanghai.aliyuncs.com':443
UDP
- DNS ASK Ga###.#iaoDuTools.com
- DNS ASK up.###odutools.com
- DNS ASK gc######.##s-cn-shanghai.aliyuncs.com
Miscellaneous
Searches for the following windows
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'MS_WebCheckMonitor' WindowName: ''
Creates and executes the following
- '<Full path to file>'
Restarts the analyzed sample
Executes the following
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\FirewallControlPanel.dll,ShowNotificationDialog /configure /ETOnly 0 /OnProfiles 6 /OtherAllowed 0 /OtherBlocked 0 /OtherEdgeAllowed 0 /NewBlocked 4 "<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /c ""<Current directory>\re.bat" run"
- '%WINDIR%\syswow64\ping.exe' 127.0.0.1 -n 3
- '%WINDIR%\syswow64\cmd.exe' /c ""<Current directory>\re.bat" run"' (with hidden window)
