Win32.HLLW.Autoruner3.924

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'cuobae' = '%HOMEPATH%\cuobae.exe /k'

Creates the following files on removable media

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\clip_1080_5sec_10mbps_h264.exe
<Drive name for removable media>:\51.exe
<Drive name for removable media>:\video_1.exe
<Drive name for removable media>:\ff_ot_user_guide.exe
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.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>:\210252809.exe
<Drive name for removable media>:\pushkin.exe
<Drive name for removable media>:\bc01.exe
<Drive name for removable media>:\subjectclassification.exe
<Drive name for removable media>:\contractualdeadlines.exe
<Drive name for removable media>:\fiche_inscription_2015.exe
<Drive name for removable media>:\guide_reorganization_mapping.exe
<Drive name for removable media>:\removedtitles_records.exe
<Drive name for removable media>:\secret.exe
<Drive name for removable media>:\sexy.exe
<Drive name for removable media>:\babyboymaintonotesbackground_pal.exe
<Drive name for removable media>:\testwmv.exe
<Drive name for removable media>:\168.exe
<Drive name for removable media>:\3.exe
<Drive name for removable media>:\1189.exe
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\delete.exe
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\split.exe
<Drive name for removable media>:\archer.exe
<Drive name for removable media>:\dashborder_144.exe
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\cuobae.exe
<Drive name for removable media>:\dial.exe
<Drive name for removable media>:\ovp25012015.exe
<Drive name for removable media>:\february_catalogue__2015.exe
<Drive name for removable media>:\lisp_success.exe
<Drive name for removable media>:\fi51.exe
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\parnas_01.exe
<Drive name for removable media>:\region-north-karelia.exe
<Drive name for removable media>:\13.exe
<Drive name for removable media>:\dialmap.exe
<Drive name for removable media>:\porn.exe
<Drive name for removable media>:\passwords.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%\cuobae.exe

Sets the 'hidden' attribute to the following files

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

Network activity

Connects to

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

UDP

DNS ASK ns#.##ayer1352.com

Miscellaneous

Creates and executes the following

'%HOMEPATH%\cuobae.exe'

Technologies

Terminology

Training and education

Myths

Technical Information