Technical Information
To ensure autorun and distribution
Sets the following service settings
- [HKLM\System\CurrentControlSet\Services\rmxvjyme] 'Start' = '00000002'
- [HKLM\System\CurrentControlSet\Services\rmxvjyme] 'ImagePath' = '%WINDIR%\SysWOW64\rmxvjyme\igmqurm.exe /d"<Full path to file>"'
- [HKLM\SYSTEM\CurrentControlSet\services\rmxvjyme] 'ImagePath' = '%WINDIR%\SysWOW64\rmxvjyme\igmqurm.exe'
Creates the following services
- 'rmxvjyme' %WINDIR%\SysWOW64\rmxvjyme\igmqurm.exe /d"<Full path to file>"
- 'rmxvjyme' %WINDIR%\SysWOW64\rmxvjyme\igmqurm.exe
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
- [HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\rmxvjyme' = '00000000'
Executes the following
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
- %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
- %TEMP%\igmqurm.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\igmqurm.exe to %WINDIR%\syswow64\rmxvjyme\igmqurm.exe
Deletes itself.
Network activity
Connects to
- 'va##heim.cn':443
- 'mt##.##0.yahoodns.net':25
- '16#.#41.2.151':587
- '47.#3.26.44':25
- '12#.#26.45.161':587
- '62.##9.128.201':587
- 'im##.###viciodecorreo.es':993
- 'b-#####.facebook.com':443
- '47.##6.136.232':465
- '19#.90.9.16':25
- '62.#6.20.30':25
- 'google.com':80
- '18#.#.214.51':427
- '18#.#.214.50':427
- '18#.#47.125.147':427
- '19#.143.1.5':427
- '18#.#47.125.146':427
- '45.##3.201.238':427
- '18#.#47.125.145':427
- '18#.#.214.57':483
- 'gr###.instagram.com':443
- '21#.#05.35.70':25
TCP
HTTP GET requests
- http://www.google.com/
Other
- 'va##heim.cn':443
- '18#.#.214.57':483
- '18#.#47.125.145':427
- '18#.#47.125.146':427
- '18#.#47.125.147':427
- '19#.143.1.5':427
- '18#.#.214.50':427
- '18#.#.214.51':427
- '45.##3.201.238':427
- '19#.90.9.16':25
- '47.##6.136.232':465
- '62.##9.128.201':587
- '12#.#26.45.161':587
- '16#.#41.2.151':587
UDP
- DNS ASK va##heim.cn
- DNS ASK 13#.###.#00.176.dnsbl.sorbs.net
- DNS ASK 13#.###.#00.176.bl.spamcop.net
- DNS ASK google.com
- DNS ASK 13#.###.##0.176.zen.spamhaus.org
- DNS ASK 13#.###.###.176.sbl-xbl.spamhaus.org
- DNS ASK 13#.###.#00.176.cbl.abuseat.org
- DNS ASK b-#####.facebook.com
- DNS ASK im##.###viciodecorreo.es
- DNS ASK ya##o.com
- DNS ASK mt##.##0.yahoodns.net
- DNS ASK 13#.###.#00.176.in-addr.arpa
- DNS ASK gr###.instagram.com
- '<DNS_SERVER>':53
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\rmxvjyme\igmqurm.exe' /d"<Full path to file>"
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\rmxvjyme\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\igmqurm.exe" %WINDIR%\SysWOW64\rmxvjyme\
- '%WINDIR%\syswow64\sc.exe' create rmxvjyme binPath= "%WINDIR%\SysWOW64\rmxvjyme\igmqurm.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description rmxvjyme "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start rmxvjyme
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\rmxvjyme\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\igmqurm.exe" %WINDIR%\SysWOW64\rmxvjyme\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create rmxvjyme binPath= "%WINDIR%\SysWOW64\rmxvjyme\igmqurm.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description rmxvjyme "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start rmxvjyme' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
