Win32.HLLW.Autoruner2.52571

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /N'

Creates the following files on removable media

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
<Drive name for removable media>:\dualectls.exe
<Drive name for removable media>:\spib_pima.exe
<Drive name for removable media>:\lom602.exe
<Drive name for removable media>:\bc01.exe
<Drive name for removable media>:\calibre.exe
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\block.exe
<Drive name for removable media>:\bg_search_box.exe
<Drive name for removable media>:\subjectclassification.exe
<Drive name for removable media>:\calculatorworksheet.exe
<Drive name for removable media>:\fiche_inscription_2015.exe
<Drive name for removable media>:\secret.exe
<Drive name for removable media>:\sexy.exe
<Drive name for removable media>:\51.exe
<Drive name for removable media>:\video_1.exe
<Drive name for removable media>:\2.exe
<Drive name for removable media>:\4f0bf7ff71f28.exe
<Drive name for removable media>:\region-north-karelia.exe
<Drive name for removable media>:\delete.exe
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\dashborder_96.exe
<Drive name for removable media>:\coffee.exe
<Drive name for removable media>:\porn.exe
<Drive name for removable media>:\dissolveanother.exe
<Drive name for removable media>:\dial.exe
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\hanni_umami_chapter.exe
<Drive name for removable media>:\weeklysheet1215.exe
<Drive name for removable media>:\3.exe
<Drive name for removable media>:\13.exe
<Drive name for removable media>:\210252809.exe
<Drive name for removable media>:\mwhof.exe
<Drive name for removable media>:\dashborder_144.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%\mwhof.exe

Sets the 'hidden' attribute to the following files

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

Network activity

Connects to

'255.255.255.255':8003

UDP

DNS ASK ns#.##ayer1352.com
DNS ASK ns#.##ayer1352.net
DNS ASK ns#.##ayer1352.org

Miscellaneous

Creates and executes the following

'%HOMEPATH%\mwhof.exe'

Technologies

Terminology

Training and education

Myths

Technical Information