Win32.HLLW.Autoruner2.56736

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'brsor' = '%HOMEPATH%\brsor.exe /u'

Creates the following files on removable media

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\babyboymaintoscenesbackground.exe
<Drive name for removable media>:\rcx33.tmp
<Drive name for removable media>:\asm.exe
<Drive name for removable media>:\rcx32.tmp
<Drive name for removable media>:\arrow-down.exe
<Drive name for removable media>:\rcx31.tmp
<Drive name for removable media>:\background.exe
<Drive name for removable media>:\rcx30.tmp
<Drive name for removable media>:\cbz.exe
<Drive name for removable media>:\rcx2f.tmp
<Drive name for removable media>:\breakpoint.exe
<Drive name for removable media>:\rcx34.tmp
<Drive name for removable media>:\rcx2e.tmp
<Drive name for removable media>:\rcx2c.tmp
<Drive name for removable media>:\lom602.exe
<Drive name for removable media>:\rcx2b.tmp
<Drive name for removable media>:\rcx2a.tmp
<Drive name for removable media>:\rcx29.tmp
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
<Drive name for removable media>:\rcx28.tmp
<Drive name for removable media>:\rcx27.tmp
<Drive name for removable media>:\rcx26.tmp
<Drive name for removable media>:\7790_preview.exe
<Drive name for removable media>:\rcx25.tmp
<Drive name for removable media>:\rcx2d.tmp
<Drive name for removable media>:\rcx35.tmp
<Drive name for removable media>:\testwmv.exe
<Drive name for removable media>:\rcx36.tmp
<Drive name for removable media>:\rcx47.tmp
<Drive name for removable media>:\passwords.exe
<Drive name for removable media>:\rcx46.tmp
<Drive name for removable media>:\rcx45.tmp
<Drive name for removable media>:\porn.exe
<Drive name for removable media>:\rcx44.tmp
<Drive name for removable media>:\sexy.exe
<Drive name for removable media>:\secret.exe
<Drive name for removable media>:\rcx43.tmp
<Drive name for removable media>:\rcx42.tmp
<Drive name for removable media>:\rcx41.tmp
<Drive name for removable media>:\removedtitles_records.exe
<Drive name for removable media>:\rcx40.tmp
<Drive name for removable media>:\rcx3f.tmp
<Drive name for removable media>:\rcx3e.tmp
<Drive name for removable media>:\subjectclassification.exe
<Drive name for removable media>:\rcx3d.tmp
<Drive name for removable media>:\rcx3c.tmp
<Drive name for removable media>:\rcx3b.tmp
<Drive name for removable media>:\excel_example.exe
<Drive name for removable media>:\rcx3a.tmp
<Drive name for removable media>:\rcx39.tmp
<Drive name for removable media>:\rcx38.tmp
<Drive name for removable media>:\productos.exe
<Drive name for removable media>:\rcx37.tmp
<Drive name for removable media>:\rcx24.tmp
<Drive name for removable media>:\rcx48.tmp
<Drive name for removable media>:\rcx23.tmp
<Drive name for removable media>:\rcx22.tmp
<Drive name for removable media>:\rcxe.tmp
<Drive name for removable media>:\rcxd.tmp
<Drive name for removable media>:\rcxc.tmp
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\rcxb.tmp
<Drive name for removable media>:\dashborder_192.exe
<Drive name for removable media>:\rcxa.tmp
<Drive name for removable media>:\dashborder_144.exe
<Drive name for removable media>:\rcx9.tmp
<Drive name for removable media>:\dashborder_96.exe
<Drive name for removable media>:\rcx8.tmp
<Drive name for removable media>:\508softwareandos.exe
<Drive name for removable media>:\tileimage.exe
<Drive name for removable media>:\dialmap.exe
<Drive name for removable media>:\rcx6.tmp
<Drive name for removable media>:\rcx5.tmp
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\rcx4.tmp
<Drive name for removable media>:\rcx3.tmp
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\rcx2.tmp
<Drive name for removable media>:\rcx1.tmp
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\brsor.exe
<Drive name for removable media>:\rcx7.tmp
<Drive name for removable media>:\rcxf.tmp
<Drive name for removable media>:\rcx10.tmp
<Drive name for removable media>:\rcx11.tmp
<Drive name for removable media>:\rcx21.tmp
<Drive name for removable media>:\rcx20.tmp
<Drive name for removable media>:\spib_pima.exe
<Drive name for removable media>:\rcx1f.tmp
<Drive name for removable media>:\rcx1e.tmp
<Drive name for removable media>:\rcx1d.tmp
<Drive name for removable media>:\ff_ot_user_guide.exe
<Drive name for removable media>:\rcx1c.tmp
<Drive name for removable media>:\rcx1b.tmp
<Drive name for removable media>:\video_1.exe
<Drive name for removable media>:\rcx1a.tmp
<Drive name for removable media>:\rcx19.tmp
<Drive name for removable media>:\51.exe
<Drive name for removable media>:\rcx18.tmp
<Drive name for removable media>:\210252809.exe
<Drive name for removable media>:\rcx17.tmp
<Drive name for removable media>:\region-north-karelia.exe
<Drive name for removable media>:\rcx16.tmp
<Drive name for removable media>:\parnas_01.exe
<Drive name for removable media>:\rcx15.tmp
<Drive name for removable media>:\2.exe
<Drive name for removable media>:\rcx14.tmp
<Drive name for removable media>:\rcx13.tmp
<Drive name for removable media>:\rcx12.tmp
<Drive name for removable media>:\fi51.exe
<Drive name for removable media>:\fil_20060629111052.exe
<Drive name for removable media>:\rcx49.tmp

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%\brsor.exe

Sets the 'hidden' attribute to the following files

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

Deletes the following files

<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\7790_preview.exe
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
<Drive name for removable media>:\lom602.exe
<Drive name for removable media>:\breakpoint.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>:\asm.exe
<Drive name for removable media>:\babyboymaintoscenesbackground.exe
<Drive name for removable media>:\testwmv.exe
<Drive name for removable media>:\productos.exe
<Drive name for removable media>:\excel_example.exe
<Drive name for removable media>:\subjectclassification.exe
<Drive name for removable media>:\removedtitles_records.exe
<Drive name for removable media>:\sexy.exe
<Drive name for removable media>:\fil_20060629111052.exe
<Drive name for removable media>:\porn.exe
<Drive name for removable media>:\spib_pima.exe
<Drive name for removable media>:\video_1.exe
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\dialmap.exe
<Drive name for removable media>:\tileimage.exe
<Drive name for removable media>:\dashborder_96.exe
<Drive name for removable media>:\dashborder_144.exe
<Drive name for removable media>:\dashborder_192.exe
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\508softwareandos.exe
<Drive name for removable media>:\fi51.exe
<Drive name for removable media>:\2.exe
<Drive name for removable media>:\parnas_01.exe
<Drive name for removable media>:\region-north-karelia.exe
<Drive name for removable media>:\210252809.exe
<Drive name for removable media>:\51.exe
<Drive name for removable media>:\ff_ot_user_guide.exe
<Drive name for removable media>:\passwords.exe

Substitutes the following files

<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\7790_preview.exe
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
<Drive name for removable media>:\lom602.exe
<Drive name for removable media>:\breakpoint.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>:\asm.exe
<Drive name for removable media>:\babyboymaintoscenesbackground.exe
<Drive name for removable media>:\testwmv.exe
<Drive name for removable media>:\productos.exe
<Drive name for removable media>:\excel_example.exe
<Drive name for removable media>:\subjectclassification.exe
<Drive name for removable media>:\removedtitles_records.exe
<Drive name for removable media>:\sexy.exe
<Drive name for removable media>:\fil_20060629111052.exe
<Drive name for removable media>:\porn.exe
<Drive name for removable media>:\spib_pima.exe
<Drive name for removable media>:\video_1.exe
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\000814251_video_01.exe
<Drive name for removable media>:\dialmap.exe
<Drive name for removable media>:\tileimage.exe
<Drive name for removable media>:\dashborder_96.exe
<Drive name for removable media>:\dashborder_144.exe
<Drive name for removable media>:\dashborder_192.exe
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
<Drive name for removable media>:\508softwareandos.exe
<Drive name for removable media>:\fi51.exe
<Drive name for removable media>:\2.exe
<Drive name for removable media>:\parnas_01.exe
<Drive name for removable media>:\region-north-karelia.exe
<Drive name for removable media>:\210252809.exe
<Drive name for removable media>:\51.exe
<Drive name for removable media>:\ff_ot_user_guide.exe
<Drive name for removable media>:\passwords.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%\brsor.exe'

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Technical Information