Technical Information
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\DownloadManager.exe' = '%TEMP%\DownloadManager.exe:*:Enabled:DownloadManager.exe'
Creates and executes the following:
- '%TEMP%\DownloadManager.exe'
- '<LS_APPDATA>tfKEPPwwL_.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\DownloadManager.exe" "DownloadManager.exe" ENABLE
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen <LS_APPDATA>aIuEBpcihN..jpg
Modifies file system :
Creates the following files:
- %HOMEPATH%\Recent\Application DataaIuEBpcihN..lnk
- %HOMEPATH%\Recent\Local Settings.lnk
- %TEMP%\DownloadManager.exe
- <LS_APPDATA>tfKEPPwwL_.exe
- <LS_APPDATA>aIuEBpcihN..jpg
Network activity:
Connects to:
- 'bl####hat.no-ip.biz':1177
UDP:
- DNS ASK bl####hat.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
