Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Windows_rejoice2008_819] 'Start' = '00000002'
Malicious functions:
Executes the following:
- <SYSTEM32>\dumprep.exe 3052 -dm 7 7 %TEMP%\WER0835.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 3052 -dm 7 7 %TEMP%\WER0835.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 3104 -dm 7 7 %TEMP%\WER27e4.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 3000 -dm 7 7 %TEMP%\WERd712.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 2944 -dm 7 7 %TEMP%\WERbe2a.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 2944 -dm 7 7 %TEMP%\WERbe2a.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 3000 -dm 7 7 %TEMP%\WERd712.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 3220 -dm 7 7 %TEMP%\WER749b.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 3272 -dm 7 7 %TEMP%\WER93c8.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 3272 -dm 7 7 %TEMP%\WER93c8.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 3220 -dm 7 7 %TEMP%\WER749b.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 3104 -dm 7 7 %TEMP%\WER27e4.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 3168 -dm 7 7 %TEMP%\WER5c90.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 3168 -dm 7 7 %TEMP%\WER5c90.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 2668 -dm 7 7 %TEMP%\WERf815.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 2668 -dm 7 7 %TEMP%\WERf815.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 2720 -dm 7 7 %TEMP%\WER1308.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\rundll32.exe <SYSTEM32>\sysdm.cpl,NoExecuteProcessException <SYSTEM32>\calc.exe
- <SYSTEM32>\calc.exe
- <SYSTEM32>\dumprep.exe 2616 -dm 7 7 %TEMP%\WERc19f.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 2616 -dm 7 7 %TEMP%\WERc19f.dir00\calc.exe.hdmp 16325836412027096
- <SYSTEM32>\dumprep.exe 2832 -dm 7 7 %TEMP%\WER6c6a.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 2892 -dm 7 7 %TEMP%\WER85d6.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 2892 -dm 7 7 %TEMP%\WER85d6.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 2832 -dm 7 7 %TEMP%\WER6c6a.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 2720 -dm 7 7 %TEMP%\WER1308.dir00\calc.exe.hdmp 16325836412027088
- <SYSTEM32>\dumprep.exe 2776 -dm 7 7 %TEMP%\WER4a82.dir00\calc.exe.mdmp 16325836412027076
- <SYSTEM32>\dumprep.exe 2776 -dm 7 7 %TEMP%\WER4a82.dir00\calc.exe.hdmp 16325836412027088
Modifies file system :
Creates the following files:
- %TEMP%\WER0835.dir00\calc.exe.hdmp
- %TEMP%\WER0835.dir00\calc.exe.mdmp
- %TEMP%\WERd712.dir00\manifest.txt
- %TEMP%\WER27e4.dir00\calc.exe.mdmp
- %TEMP%\WER0835.dir00\manifest.txt
- %TEMP%\WER0835.dir00\appcompat.txt
- %TEMP%\WERd712.dir00\appcompat.txt
- %TEMP%\WERbe2a.dir00\appcompat.txt
- %TEMP%\WERbe2a.dir00\calc.exe.hdmp
- %TEMP%\WERbe2a.dir00\calc.exe.mdmp
- %TEMP%\WERd712.dir00\calc.exe.hdmp
- %TEMP%\WERd712.dir00\calc.exe.mdmp
- %TEMP%\WERbe2a.dir00\manifest.txt
- %TEMP%\WER749b.dir00\appcompat.txt
- %TEMP%\WER749b.dir00\calc.exe.hdmp
- %TEMP%\WER749b.dir00\calc.exe.mdmp
- %TEMP%\WER93c8.dir00\calc.exe.hdmp
- %TEMP%\WER93c8.dir00\calc.exe.mdmp
- %TEMP%\WER749b.dir00\manifest.txt
- %TEMP%\WER5c90.dir00\manifest.txt
- %TEMP%\WER27e4.dir00\manifest.txt
- %TEMP%\WER27e4.dir00\appcompat.txt
- %TEMP%\WER27e4.dir00\calc.exe.hdmp
- %TEMP%\WER5c90.dir00\appcompat.txt
- %TEMP%\WER5c90.dir00\calc.exe.hdmp
- %TEMP%\WER5c90.dir00\calc.exe.mdmp
- %TEMP%\WER85d6.dir00\manifest.txt
- %TEMP%\WERf815.dir00\appcompat.txt
- %TEMP%\WERf815.dir00\calc.exe.hdmp
- %TEMP%\WERf815.dir00\calc.exe.mdmp
- %TEMP%\WER1308.dir00\calc.exe.hdmp
- %TEMP%\WER1308.dir00\calc.exe.mdmp
- %TEMP%\WERf815.dir00\manifest.txt
- %TEMP%\WERc19f.dir00\manifest.txt
- %PROGRAM_FILES%\_rejoice819.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\rejoice819.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\FieleWay.txt
- %TEMP%\WERc19f.dir00\appcompat.txt
- %TEMP%\WERc19f.dir00\calc.exe.hdmp
- %TEMP%\WERc19f.dir00\calc.exe.mdmp
- %TEMP%\WER6c6a.dir00\manifest.txt
- %TEMP%\WER6c6a.dir00\appcompat.txt
- %TEMP%\WER6c6a.dir00\calc.exe.hdmp
- %TEMP%\WER85d6.dir00\appcompat.txt
- %TEMP%\WER85d6.dir00\calc.exe.hdmp
- %TEMP%\WER85d6.dir00\calc.exe.mdmp
- %TEMP%\WER6c6a.dir00\calc.exe.mdmp
- %TEMP%\WER4a82.dir00\calc.exe.mdmp
- %TEMP%\WER1308.dir00\manifest.txt
- %TEMP%\WER1308.dir00\appcompat.txt
- %TEMP%\WER4a82.dir00\manifest.txt
- %TEMP%\WER4a82.dir00\appcompat.txt
- %TEMP%\WER4a82.dir00\calc.exe.hdmp
Sets the 'hidden' attribute to the following files:
- %PROGRAM_FILES%\_rejoice819.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\rejoice819.exe
Deletes the following files:
- %CommonProgramFiles%\Microsoft Shared\MSInfo\FieleWay.txt
Deletes itself.
Network activity:
Connects to:
- 'mw###.9yz.tw.cn':80
TCP:
HTTP GET requests:
- mw###.9yz.tw.cn/ip.txt
UDP:
- DNS ASK mw###.9yz.tw.cn
Miscellaneous:
Searches for the following windows:
- ClassName: 'TMonthCake' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'TAppBuilder' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''