Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'fwbok' = '%HOMEPATH%\fwbok.exe /L'
Creates the following files on removable media
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\7790_preview.pdf.lnk
- <Drive name for removable media>:\10thingscondoms.pdf.lnk
- <Drive name for removable media>:\background.png.lnk
- <Drive name for removable media>:\arrow-down.png.lnk
- <Drive name for removable media>:\cbz.png.lnk
- <Drive name for removable media>:\bg_search_box.png.lnk
- <Drive name for removable media>:\dissolveanother.png.lnk
- <Drive name for removable media>:\cveuropeo.doc.lnk
- <Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv.lnk
- <Drive name for removable media>:\testwmv.wmv.lnk
- <Drive name for removable media>:\removedtitles_records.xls.lnk
- <Drive name for removable media>:\contractualdeadlines.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>:\ff_ot_user_guide.pdf.lnk
- <Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf.lnk
- <Drive name for removable media>:\spib_pima.pdf.lnk
- <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf.lnk
- <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
- <Drive name for removable media>:\fwbok.exe
- <Drive name for removable media>:\fwbokx.exe
- <Drive name for removable media>:\delete.avi.lnk
- <Drive name for removable media>:\000814251_video_01.avi.lnk
- <Drive name for removable media>:\archer.avi.lnk
- <Drive name for removable media>:\split.avi.lnk
- <Drive name for removable media>:\dashborder_96.bmp.lnk
- <Drive name for removable media>:\music.lnk
- <Drive name for removable media>:\passport_pal.wmv.lnk
- <Drive name for removable media>:\fi51.doc.lnk
- <Drive name for removable media>:\applicantform_en.doc.lnk
- <Drive name for removable media>:\lisp_success.doc.lnk
- <Drive name for removable media>:\3.jpg.lnk
- <Drive name for removable media>:\parnas_01.jpg.lnk
- <Drive name for removable media>:\1189.jpg.lnk
- <Drive name for removable media>:\4f0bf7ff71f28.jpg.lnk
- <Drive name for removable media>:\region-north-karelia.jpg.lnk
- <Drive name for removable media>:\fyx.ico
- <Drive name for removable media>:\weeklysheet1215.doc.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%\fwbok.exe
Sets the 'hidden' attribute to the following files
- %HOMEPATH%\fwbok.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\fyx.ico
- <Drive name for removable media>:\fwbok.exe
- <Drive name for removable media>:\fwbokx.exe
Network activity
Connects to
- '255.255.255.255':8000
UDP
- DNS ASK ns#.##ayer1532.com
- DNS ASK ns#.##deoall.org
- DNS ASK ns#.##deoall.net
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\fwbok.exe'
