Win32.HLLW.Autoruner3.402

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

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

Creates the following files on removable media

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\block.exe
<Drive name for removable media>:\cbz.exe
<Drive name for removable media>:\background.exe
<Drive name for removable media>:\arrow-down.exe
<Drive name for removable media>:\flower_trans_matte.exe
<Drive name for removable media>:\fil_20060629111052.exe
<Drive name for removable media>:\calibre.exe
<Drive name for removable media>:\babyboymaintonotesbackground_pal.exe
<Drive name for removable media>:\passport_pal.exe
<Drive name for removable media>:\babyboymaintoscenesbackground_pal.exe
<Drive name for removable media>:\subjectclassification.exe
<Drive name for removable media>:\calculatorworksheet.exe
<Drive name for removable media>:\contractualdeadlines.exe
<Drive name for removable media>:\testwmv.exe
<Drive name for removable media>:\babyboymaintoscenesbackground.exe
<Drive name for removable media>:\ff_ot_user_guide.exe
<Drive name for removable media>:\spib_pima.exe
<Drive name for removable media>:\7790_preview.exe
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\dashborder_96.exe
<Drive name for removable media>:\dashborder_120.exe
<Drive name for removable media>:\tileimage.exe
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\weeluoy.exe
<Drive name for removable media>:\lisp_success.exe
<Drive name for removable media>:\parnas_01.exe
<Drive name for removable media>:\pushkin.exe
<Drive name for removable media>:\13.exe
<Drive name for removable media>:\210252809.exe
<Drive name for removable media>:\1189.exe
<Drive name for removable media>:\clip_480_5sec_6mbps_h264.exe
<Drive name for removable media>:\fi51.exe
<Drive name for removable media>:\excel_example.exe
<Drive name for removable media>:\1sm_price.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%\weeluoy.exe

Sets the 'hidden' attribute to the following files

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

Network activity

Connects to

'255.255.255.255':8000

UDP

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

Miscellaneous

Creates and executes the following

'%HOMEPATH%\weeluoy.exe'

TECHNOLOGIES

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Technical Information