Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'tiayif' = '%HOMEPATH%\tiayif.exe /R'
Creates the following files on removable media
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\fil_20060629111052.pdf.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>:\dualectls.pdf.lnk
- <Drive name for removable media>:\background.png.lnk
- <Drive name for removable media>:\asm.png.lnk
- <Drive name for removable media>:\bg_search_box.png.lnk
- <Drive name for removable media>:\block.png.lnk
- <Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv.lnk
- <Drive name for removable media>:\babyboymaintoscenesbackground_pal.wmv.lnk
- <Drive name for removable media>:\music.lnk
- <Drive name for removable media>:\removedtitles_records.xls.lnk
- <Drive name for removable media>:\contractualdeadlines.xls.lnk
- <Drive name for removable media>:\productos.xls.lnk
- <Drive name for removable media>:\fiche_inscription_2015.xls.lnk
- <Drive name for removable media>:\1sm_price.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>:\2015-02-worms-nanoparticle-toxicity.pdf.lnk
- <Drive name for removable media>:\passport_pal.wmv.lnk
- <Drive name for removable media>:\video_1.mp4.lnk
- <Drive name for removable media>:\dashborder_144.bmp.lnk
- <Drive name for removable media>:\plnn.ico
- <Drive name for removable media>:\tiayif.exe
- <Drive name for removable media>:\tiayifx.exe
- <Drive name for removable media>:\join.avi.lnk
- <Drive name for removable media>:\archer.avi.lnk
- <Drive name for removable media>:\default.bmp.lnk
- <Drive name for removable media>:\dialmap.bmp.lnk
- <Drive name for removable media>:\dashborder_192.bmp.lnk
- <Drive name for removable media>:\dashborder_96.bmp.lnk
- <Drive name for removable media>:\ovp25012015.doc.lnk
- <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
- <Drive name for removable media>:\cveuropeo.doc.lnk
- <Drive name for removable media>:\february_catalogue__2015.doc.lnk
- <Drive name for removable media>:\weeklysheet1215.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>:\2.jpg.lnk
- <Drive name for removable media>:\pushkin.jpg.lnk
- <Drive name for removable media>:\region-north-karelia.jpg.lnk
- <Drive name for removable media>:\video.mp4.lnk
- <Drive name for removable media>:\51.mp4.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%\tiayif.exe
Sets the 'hidden' attribute to the following files
- %HOMEPATH%\tiayif.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\plnn.ico
- <Drive name for removable media>:\tiayif.exe
- <Drive name for removable media>:\tiayifx.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%\tiayif.exe'
