Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'UDP Subsystem' = '%ProgramFiles(x86)%\UDP Subsystem\udpss.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\updates\trxhdhpwh
Malicious functions
Creates and executes the following
- '' (downloaded from the Internet)
Creates and executes the following (exploit)
- 'C:\users\public\vbc.exe'
Injects code into
the following user processes:
- vbc.exe
Modifies file system
Creates the following files
- C:\users\public\vbc.exe
- %APPDATA%\trxhdhpwh.exe
- %TEMP%\tmpa1d.tmp
- %APPDATA%\36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee\run.dat
- %ProgramFiles(x86)%\udp subsystem\udpss.exe
Sets the 'hidden' attribute to the following files
- %APPDATA%\trxhdhpwh.exe
Deletes the following files
- %TEMP%\tmpa1d.tmp
Network activity
UDP
- DNS ASK no#.#yq-see.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\schtasks.exe' /Create /TN "Updates\TrXHdHpWh" /XML "%TEMP%\tmpA1D.tmp"' (with hidden window)
Executes the following
- '%CommonProgramFiles%\microsoft shared\equation\eqnedt32.exe' -Embedding
- '%WINDIR%\syswow64\schtasks.exe' /Create /TN "Updates\TrXHdHpWh" /XML "%TEMP%\tmpA1D.tmp"
