Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'srjok' = '%HOMEPATH%\srjok.exe /V'
Creates the following files on removable media
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\lom602.pdf.lnk
- <Drive name for removable media>:\dualectls.pdf.lnk
- <Drive name for removable media>:\background.png.lnk
- <Drive name for removable media>:\calibre.png.lnk
- <Drive name for removable media>:\dissolveanother.png.lnk
- <Drive name for removable media>:\breakpoint.png.lnk
- <Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv.lnk
- <Drive name for removable media>:\flower_trans_matte.wmv.lnk
- <Drive name for removable media>:\babyboymaintoscenesbackground_pal.wmv.lnk
- <Drive name for removable media>:\music.lnk
- <Drive name for removable media>:\testwmv.wmv.lnk
- <Drive name for removable media>:\price030215.xls.lnk
- <Drive name for removable media>:\guide_reorganization_mapping.xls.lnk
- <Drive name for removable media>:\excel_example.xls.lnk
- <Drive name for removable media>:\new folder.lnk
- <Drive name for removable media>:\passwords.lnk
- <Drive name for removable media>:\documents.lnk
- <Drive name for removable media>:\pictures.lnk
- <Drive name for removable media>:\7790_preview.pdf.lnk
- <Drive name for removable media>:\passport_pal.wmv.lnk
- <Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf.lnk
- <Drive name for removable media>:\coffee.bmp.lnk
- <Drive name for removable media>:\srjok.exe
- <Drive name for removable media>:\srjokx.exe
- <Drive name for removable media>:\correct.avi.lnk
- <Drive name for removable media>:\join.avi.lnk
- <Drive name for removable media>:\split.avi.lnk
- <Drive name for removable media>:\archer.avi.lnk
- <Drive name for removable media>:\dashborder_192.bmp.lnk
- <Drive name for removable media>:\dialmap.bmp.lnk
- <Drive name for removable media>:\508softwareandos.doc.lnk
- <Drive name for removable media>:\51.mp4.lnk
- <Drive name for removable media>:\cveuropeo.doc.lnk
- <Drive name for removable media>:\hanni_umami_chapter.doc.lnk
- <Drive name for removable media>:\february_catalogue__2015.doc.lnk
- <Drive name for removable media>:\lisp_success.doc.lnk
- <Drive name for removable media>:\fi51.doc.lnk
- <Drive name for removable media>:\parnas_01.jpg.lnk
- <Drive name for removable media>:\region-north-karelia.jpg.lnk
- <Drive name for removable media>:\pushkin.jpg.lnk
- <Drive name for removable media>:\ff_ot_user_guide.pdf.lnk
- <Drive name for removable media>:\video.lnk
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Modifies file system
Creates the following files
- %HOMEPATH%\srjok.exe
Sets the 'hidden' attribute to the following files
- %HOMEPATH%\srjok.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\srjok.exe
- <Drive name for removable media>:\srjokx.exe
Network activity
Connects to
- '255.255.255.255':8000
UDP
- DNS ASK ns#.##ayer1253.com
- DNS ASK ns#.##deoall.net
- DNS ASK ns#.##diashares.org
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\srjok.exe'
