Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\wudfhostw
- <SYSTEM32>\tasks\wudfhost
- <SYSTEM32>\tasks\sppsvcs
- <SYSTEM32>\tasks\sppsvc
- <SYSTEM32>\tasks\conhostc
- <SYSTEM32>\tasks\msdriverm
- <SYSTEM32>\tasks\audiodga
- <SYSTEM32>\tasks\conhost
- <SYSTEM32>\tasks\audiodg
- <SYSTEM32>\tasks\smss
- <SYSTEM32>\tasks\smsss
- <SYSTEM32>\tasks\msdriver
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '<Current directory>\conhost.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\kms\sppsvc.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\kms\smss.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\{90140000-001B-0409-1000-0000000FF1CE}-C\WUDFHost.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Users/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/MSOCache/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/kms/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/jzxjqh/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\audiodg.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '%TEMP%\winbrokerMonitornet\c\u\l\MsDriver.exe'
Modifies file system
Creates the following files
- %TEMP%\winbrokermonitornet\c\u\l\msdriver.exe
- %HOMEPATH%\desktop\pgdnqhhm.log
- %HOMEPATH%\desktop\prchunci.log
- %HOMEPATH%\desktop\qwniuwri.log
- %HOMEPATH%\desktop\zfhyeyxq.log
- %HOMEPATH%\desktop\ipsugxqd.log
- nul
- %TEMP%\tsfpzoquym.bat
- %TEMP%\t6ikrjmlbz
- C:\msocache\all users\{90140000-001b-0409-1000-0000000ff1ce}-c\480b7989c529f6
- C:\msocache\all users\{90140000-001b-0409-1000-0000000ff1ce}-c\wudfhost.exe
- C:\kms\0a1fd5f707cd16
- C:\kms\sppsvc.exe
- <Current directory>\088424020bedd6
- %HOMEPATH%\desktop\obsmqyrl.log
- <Current directory>\conhost.exe
- C:\kms\smss.exe
- C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\42af1c969fbb7b
- C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\audiodg.exe
- %TEMP%\winbrokermonitornet\c\u\l\653baf9b63c9f0
- %HOMEPATH%\desktop\jhffxxim.log
- %HOMEPATH%\desktop\slnvhryt.log
- %HOMEPATH%\desktop\uvjwhjdu.log
- %HOMEPATH%\desktop\tgjqlpyq.log
- %HOMEPATH%\desktop\cjrguinx.log
- %HOMEPATH%\desktop\nxvweuif.log
- %HOMEPATH%\desktop\xwuqabdj.log
- %TEMP%\winbrokermonitornet\c\u\l\emyx5.bat
- %TEMP%\winbrokermonitornet\c\u\l\efyun9mddl.vbe
- C:\kms\69ddcba757bf72
- %HOMEPATH%\desktop\esywgvme.log
Deletes the following files
- %TEMP%\t6ikrjmlbz
Network activity
UDP
- 'localhost':123
Miscellaneous
Searches for the following windows
- ClassName: 'EDIT' WindowName: ''
Creates and executes the following
- '%WINDIR%\syswow64\wscript.exe' "%TEMP%\winbrokerMonitornet\c\u\l\efyun9MDDL.vbe"
- '%TEMP%\winbrokermonitornet\c\u\l\msdriver.exe'
- 'C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\audiodg.exe'
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\winbrokerMonitornet\c\u\l\EmYx5.bat" "
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\TSfpzOquyM.bat"
- '<SYSTEM32>\schtasks.exe' /create /tn "MsDriverM" /sc MINUTE /mo 14 /tr "'%TEMP%\winbrokerMonitornet\c\u\l\MsDriver.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "MsDriver" /sc ONLOGON /tr "'%TEMP%\winbrokerMonitornet\c\u\l\MsDriver.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "MsDriverM" /sc MINUTE /mo 11 /tr "'%TEMP%\winbrokerMonitornet\c\u\l\MsDriver.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 8 /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\audiodg.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodg" /sc ONLOGON /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\audiodg.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 12 /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\audiodg.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\kms\smss.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "smss" /sc ONLOGON /tr "'C:\kms\smss.exe'" /rl HIGHEST /f
- '<SYSTEM32>\chcp.com' 65001
- '<SYSTEM32>\schtasks.exe' /create /tn "smsss" /sc MINUTE /mo 12 /tr "'C:\kms\smss.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "conhost" /sc ONLOGON /tr "'<Current directory>\conhost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'<Current directory>\conhost.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\kms\sppsvc.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "sppsvc" /sc ONLOGON /tr "'C:\kms\sppsvc.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\kms\sppsvc.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "WUDFHostW" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-001B-0409-1000-0000000FF1CE}-C\WUDFHost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001B-0409-1000-0000000FF1CE}-C\WUDFHost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "WUDFHostW" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-001B-0409-1000-0000000FF1CE}-C\WUDFHost.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'<Current directory>\conhost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\w32tm.exe' /stripchart /computer:localhost /period:5 /dataonly /samples:2
- '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\winbrokerMonitornet\c\u\l\EmYx5.bat" "' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\TSfpzOquyM.bat"' (with hidden window)
