Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'drvsyskit' = '%APPDATA%\drivers\winupgro.exe'
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\111111s1ro1s1a] 'Start' = '00000001'
- [<HKLM>\System\CurrentControlSet\Services\111111s1ro1s1a] 'ImagePath' = '%APPDATA%\drivers\111wfs1intwq.sys'
Creates the following services
- '111111s1ro1s1a' %APPDATA%\drivers\111wfs1intwq.sys
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Firewall
- Windows Update
- Windows Security Center
- Windows Defender
blocks the following features:
- User Account Control (UAC)
Searches for windows to
detect analytical utilities:
- ClassName: 'OLLYDBG', WindowName: ''
- ClassName: 'GBDYLLO', WindowName: ''
- ClassName: 'pediy06', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
- ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'RegmonClass', WindowName: ''
- ClassName: '', WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
Modifies file system
Creates the following files
- %APPDATA%\drivers\winupgro.exe
- %APPDATA%\drivers\11s11ro1s1a2.sys
- %APPDATA%\drivers\111wfs1intwq.sys
- %WINDIR%\temp\udda3cd.tmp
- %APPDATA%\drivers\downld\1074909.exe
- %APPDATA%\drivers\downld\1077124.exe
- %APPDATA%\drivers\downld\1077951.exe
- %APPDATA%\drivers\downld\1079261.exe
- %APPDATA%\drivers\downld\1081102.exe
- %APPDATA%\drivers\downld\1082334.exe
- %APPDATA%\drivers\downld\1087233.exe
- %APPDATA%\drivers\downld\1088465.exe
- %APPDATA%\drivers\downld\1088684.exe
Deletes the following files
- %WINDIR%\temp\udda3cd.tmp
Network activity
Connects to
- 'google.com':80
- 'ab##erm.sk':80
- 'ab##erm.sk':443
- 'al#####anciarural.es':80
- 'au####uzynas.net':80
- 'au#####.autogidas.lt':80
- 'au#####.autogidas.lt':443
- 'az###.700megs.com':80
- 'az###.gbs.me':80
- 'ww##.gbs.me':80
- 'ba###estate.com':80
- 'bi###yorsan.com':80
- 'ca###vuoi.com':80
TCP
HTTP GET requests
- http://ab##erm.sk/xyz.php?cr#####
- http://al#####anciarural.es/xyz.php?cr#####
- http://au#####.autogidas.lt/xyz.php?cr#####
- http://ww##.##ure.700megs.com/xyz.php?cr#################################################
- http://ww##.gbs.me/?te###########################################################################################################################################################################...
- http://ba###estate.com/xyz.php?cr#####
- http://ca###vuoi.com/xyz.php?cr#####
Other
- 'ab##erm.sk':443
- 'au#####.autogidas.lt':443
UDP
- DNS ASK google.com
- DNS ASK bi###yorsan.com
- DNS ASK bi#######elixna.altervista.org
- DNS ASK ba###estate.com
- DNS ASK ba####.110mb.com
- DNS ASK ww##.gbs.me
- DNS ASK az###.gbs.me
- DNS ASK ww##.##ure.700megs.com
- DNS ASK az###.700megs.com
- DNS ASK au#####.autogidas.lt
- DNS ASK au####uzynas.net
- DNS ASK ar##.com.ve
- DNS ASK ap###odas.org
- DNS ASK an#####eventos.com.ar
- DNS ASK al#####anciarural.es
- DNS ASK ah#####nicekesan.com
- DNS ASK ad##.net
- DNS ASK ab##erm.sk
- DNS ASK ca###vuoi.com
- DNS ASK cd###arket.it
Miscellaneous
Searches for the following windows
- ClassName: '18467-41' WindowName: ''
- ClassName: 'AavmMessageClass' WindowName: ''
Creates and executes the following
- '%APPDATA%\drivers\winupgro.exe'
- '%APPDATA%\drivers\winupgro.exe' ' (with hidden window)
