Win32.HLLW.Autoruner3.941

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'yoonug' = '%HOMEPATH%\yoonug.exe /R'

Creates the following files on removable media

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\pushkin.exe
<Drive name for removable media>:\parnas_01.exe
<Drive name for removable media>:\51.exe
<Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.exe
<Drive name for removable media>:\clip_480_5sec_6mbps_h264.exe
<Drive name for removable media>:\10thingscondoms.exe
<Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.exe
<Drive name for removable media>:\7790_preview.exe
<Drive name for removable media>:\lom602.exe
<Drive name for removable media>:\background.exe
<Drive name for removable media>:\cbz.exe
<Drive name for removable media>:\cleanlyrics.exe
<Drive name for removable media>:\asm.exe
<Drive name for removable media>:\dissolveanother.exe
<Drive name for removable media>:\arrow-down.exe
<Drive name for removable media>:\1189.exe
<Drive name for removable media>:\flower_trans_matte.exe
<Drive name for removable media>:\168.exe
<Drive name for removable media>:\region-north-karelia.exe
<Drive name for removable media>:\yoonug.exe
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\delete.exe
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\dashborder_96.exe
<Drive name for removable media>:\dashborder_144.exe
<Drive name for removable media>:\dial.exe
<Drive name for removable media>:\default.exe
<Drive name for removable media>:\coffee.exe
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\weeklysheet1215.exe
<Drive name for removable media>:\february_catalogue__2015.exe
<Drive name for removable media>:\508softwareandos.exe
<Drive name for removable media>:\cveuropeo.exe
<Drive name for removable media>:\210252809.exe
<Drive name for removable media>:\testwmv.exe

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%\yoonug.exe

Sets the 'hidden' attribute to the following files

%HOMEPATH%\yoonug.exe
<Drive name for removable media>:\autorun.inf

Network activity

Connects to

'ns#.##ayer1352.com':8000

UDP

DNS ASK ns#.##ayer1352.com

Miscellaneous

Creates and executes the following

'%HOMEPATH%\yoonug.exe'

Tecnologie

Termini

Formazione ed informazione

Falsi miti

Technical Information