Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Defender' = '-'
- [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'Windows Defender' = '-'
- [\REGISTRY\USER\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Defender' = '-'
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\Workstations] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\Workstations] 'ImagePath' = '%WINDIR%\SysWOW64\WerFaultSec.exe'
Creates the following services
- 'Workstations' %WINDIR%\SysWOW64\WerFaultSec.exe
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
Creates and executes the following
- '' (downloaded from the Internet)
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
- %WINDIR%\syswow64\werfaultsec.exe
- %TEMP%\_uninsep.bat
- %WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\62axopq5\keycode[1].php
- %WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\62axopq5\fname[1].php
- %WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\62axopq5\12taskmon[1].chm
- %WINDIR%\syswow64\taskmng.exe
- %WINDIR%\temp\gulim.ttf
Deletes the following files
- %WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\62axopq5\keycode[1].php
- %WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\62axopq5\fname[1].php
Deletes itself.
Network activity
TCP
HTTP GET requests
- http://nw###ergame.xyz/fname.php
- http://nw###ergame.xyz/keycode.php
- http://10#.#.251.96:8080/12taskmon.chm via 10#.#.251.96
UDP
- DNS ASK nw###ergame.xyz
- '10#.#.250.236':2016
Miscellaneous
Searches for the following windows
- ClassName: '18467-41' WindowName: ''
- ClassName: 'Running_Game' WindowName: '포커게임'
- ClassName: 'Running_Game' WindowName: '바둑이게임'
- ClassName: 'UnityWndClass' WindowName: '쓰리랑게임'
- ClassName: 'BTan_Game' WindowName: '맞고게임'
- ClassName: 'BTan_Game' WindowName: '포커게임'
- ClassName: 'BTan_Game' WindowName: '바둑이게임'
- ClassName: 'POKER_CANVAS' WindowName: '피쉬게임'
- ClassName: 'POKER_CANVAS' WindowName: '탱크게임'
- ClassName: 'BADUKI' WindowName: 'BADUKI'
- ClassName: 'CXG_WNDCLASS' WindowName: ''
- ClassName: 'REALGAME_CANVAS' WindowName: '게임 클라이언트'
- ClassName: 'POKER_CANVAS' WindowName: '게임 클라이언트'
- ClassName: '' WindowName: '넷마블 훌라'
- ClassName: 'Running_Game' WindowName: '맞고게임'
- ClassName: '' WindowName: '넷마블 뉴포커'
- ClassName: '' WindowName: '넷마블 로우바둑이'
- ClassName: '' WindowName: '넷마블 7포커'
- ClassName: '' WindowName: '피망 훌라'
- ClassName: '' WindowName: '피망 뉴포커'
- ClassName: '' WindowName: '피망 하이로우'
- ClassName: '' WindowName: '피망 로우바둑이'
- ClassName: '' WindowName: '피망 7포커'
- ClassName: '' WindowName: '한게임 파티훌라'
- ClassName: '' WindowName: '한게임 맞포커'
- ClassName: '' WindowName: '한게임 라스베가스 포커'
- ClassName: '' WindowName: '하이로우2'
- ClassName: '' WindowName: '한게임 로우바둑이'
- ClassName: '' WindowName: '한게임 7포커'
- ClassName: '' WindowName: '넷마블 하이로우'
- ClassName: 'UnityWndClass' WindowName: '엔선시티 홀덤'
Creates and executes the following
- '%WINDIR%\syswow64\werfaultsec.exe' -i
- '%WINDIR%\syswow64\werfaultsec.exe'
- '%WINDIR%\syswow64\taskmng.exe'
- '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\_uninsep.bat" "' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\_uninsep.bat" "