Trojan.Siggen9.15122

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\] 'Microsoft Windows Driver' = '%WINDIR%\227632042325014\svchost.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'Microsoft Windows Driver' = '%WINDIR%\227632042325014\svchost.exe'

Infects the following executable files

<Drive name for removable media>:\wrar520.exe
C:\far2\far.exe
C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\ose.exe
C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\setup.exe
C:\msocache\all users\{90140000-0115-0409-1000-0000000ff1ce}-c\dw20.exe
C:\msocache\all users\{90140000-0115-0409-1000-0000000ff1ce}-c\dwtrig20.exe
%ProgramFiles%\360tray\360tray.exe
<Drive name for removable media>:\__\wrar520.exe
<Drive name for removable media>:\__\jre-7u75-windows-i586-iftw.exe
<Drive name for removable media>:\__\skypesetup.exe
<Drive name for removable media>:\__\tcm851ax32.exe
<Drive name for removable media>:\__\chromesetup.exe
<Drive name for removable media>:\__\winmine.exe
<Drive name for removable media>:\__\utorrent.exe

Creates the following files on removable media

<Drive name for removable media>:\__\drivemgr.exe
<Drive name for removable media>:\taxus_baccata.rdf
<Drive name for removable media>:\swc_2009-03-02.rdf
<Drive name for removable media>:\hypothyroidism_slides.pptx
<Drive name for removable media>:\samieee_obiee_presentation.pptx
<Drive name for removable media>:\roozenedowebinar.pptx
<Drive name for removable media>:\iso27k_isms_implementation_and_certification_process_overview_v2.pptx
<Drive name for removable media>:\waterresourcesag.pptx
<Drive name for removable media>:\metac.ppt
<Drive name for removable media>:\ksearch_esa_talk.ppt
<Drive name for removable media>:\writingcompletesarnarrative_1103.ppt
<Drive name for removable media>:\accountsreceivable.ppt
<Drive name for removable media>:\cbz.png
<Drive name for removable media>:\dissolveanother.png
<Drive name for removable media>:\calibre.png
<Drive name for removable media>:\block.png
<Drive name for removable media>:\asm.png
<Drive name for removable media>:\tunpersonalca1.pem
<Drive name for removable media>:\server.pem
<Drive name for removable media>:\irgeek.pem
<Drive name for removable media>:\hhhlcert.pem
<Drive name for removable media>:\delongcacert.pem
<Drive name for removable media>:\ck_ugo.pem
<Drive name for removable media>:\lom602.pdf
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf
<Drive name for removable media>:\fil_20060629111052.pdf
<Drive name for removable media>:\elvisimp.rdf
<Drive name for removable media>:\skos.rdf
<Drive name for removable media>:\calculatorworksheet.zip
<Drive name for removable media>:\1sm_price.zip
<Drive name for removable media>:\removedtitles_records.zip
<Drive name for removable media>:\al.xlsx
<Drive name for removable media>:\2013_finalsummaryforweb.xlsx
<Drive name for removable media>:\trtf_matrix2012_oct.xlsx
<Drive name for removable media>:\2013_smccc_competition_points_jul2013.xlsx
<Drive name for removable media>:\suspendedcompanies.xlsx
<Drive name for removable media>:\cee_mmsprogram_summary_public.xlsx
<Drive name for removable media>:\guide_reorganization_mapping.xls
<Drive name for removable media>:\contractualdeadlines.xls
<Drive name for removable media>:\subjectclassification.xls
<Drive name for removable media>:\region-north-karelia.jpeg
<Drive name for removable media>:\babyboymaintoscenesbackground.wmv
<Drive name for removable media>:\flower_trans_matte.wmv
<Drive name for removable media>:\phytoremediation.rtf
<Drive name for removable media>:\pandp.rtf
<Drive name for removable media>:\router_manual.rtf
<Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf
<Drive name for removable media>:\waterlandhealthkano.rtf
<Drive name for removable media>:\static_electricity_easy_and_quick_activities.rtf
<Drive name for removable media>:\digest.rdf
<Drive name for removable media>:\schema.rdf
<Drive name for removable media>:\contenttypes.rdf
<Drive name for removable media>:\ff_ot_user_guide.pdf
<Drive name for removable media>:\10thingscondoms.pdf
<Drive name for removable media>:\video.mp4
<Drive name for removable media>:\sdszfo.docx
<Drive name for removable media>:\adhd_and_obesity.docx
<Drive name for removable media>:\file_p_00000000_1371597592.docx
<Drive name for removable media>:\hadac_newsletter_july_2010_final.docx
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc
<Drive name for removable media>:\february_catalogue__2015.doc
<Drive name for removable media>:\ovp25012015.doc
<Drive name for removable media>:\508softwareandos.doc
<Drive name for removable media>:\testee.cer
<Drive name for removable media>:\sdksampleprivdeveloper.cer
<Drive name for removable media>:\contoso.cer
<Drive name for removable media>:\testcertificate.cer
<Drive name for removable media>:\contosoroot.cer
<Drive name for removable media>:\contoso_1.cer
<Drive name for removable media>:\coffee.bmp
<Drive name for removable media>:\dashborder_192.bmp
<Drive name for removable media>:\dashborder_144.bmp
<Drive name for removable media>:\join.avi
<Drive name for removable media>:\delete.avi
<Drive name for removable media>:\correct.avi
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\.lnk
<Drive name for removable media>:\jre-7u75-windows-i586-iftw.exe
<Drive name for removable media>:\skypesetup.exe
<Drive name for removable media>:\wrar520.exe
<Drive name for removable media>:\tcm851ax32.exe
<Drive name for removable media>:\clip_480_5sec_6mbps_h264.mp4
<Drive name for removable media>:\chromesetup.exe
<Drive name for removable media>:\51.mp4
<Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4
<Drive name for removable media>:\scan.mov
<Drive name for removable media>:\firefly1.mov
<Drive name for removable media>:\pushkin.jpg
<Drive name for removable media>:\168.jpg
<Drive name for removable media>:\3.jpg
<Drive name for removable media>:\4f0bf7ff71f28.jpg
<Drive name for removable media>:\parnas_01.jpg
<Drive name for removable media>:\3.jpeg
<Drive name for removable media>:\productos.xls
<Drive name for removable media>:\productos.zip
<Drive name for removable media>:\168.jpeg
<Drive name for removable media>:\1189.jpeg
<Drive name for removable media>:\howto-index.html
<Drive name for removable media>:\adadsi.html
<Drive name for removable media>:\iisstart.html
<Drive name for removable media>:\browse.html
<Drive name for removable media>:\about.htm
<Drive name for removable media>:\alert.htm
<Drive name for removable media>:\tree_view.htm
<Drive name for removable media>:\utorrent.exe
<Drive name for removable media>:\winmine.exe
<Drive name for removable media>:\13.jpeg
<Drive name for removable media>:\excel_example.zip

Malicious functions

To complicate detection of its presence in the operating system,

blocks the following features:

Windows Security Center

Injects code into

the following system processes:

%WINDIR%\notepad.exe

Modifies file system

Creates the following files

%TEMP%\f84c.exe
%WINDIR%\227632042325014\svchost.exe
%TEMP%\1090425319.exe
%TEMP%\2243014645.exe
%TEMP%\1266839800.exe
%PROGRAMDATA%\zrbebqtcgq\cfgi
%PROGRAMDATA%\zrbebqtcgq\cfg
%PROGRAMDATA%\zrbebqtcgq\sysdrv32
%PROGRAMDATA%\zrbebqtcgq\r.vbs

Sets the 'hidden' attribute to the following files

%WINDIR%\227632042325014\svchost.exe
<Drive name for removable media>:\.lnk

Deletes the following files

%PROGRAMDATA%\zrbebqtcgq\r.vbs

Network activity

TCP

HTTP GET requests

http://92.##.197.190/pe.exe
http://tl##box.top/1
http://tl##box.top/2
http://tl##box.top/3
http://tl##box.top/4
http://tl##box.top/5
http://tl##box.top/v
http://92.##.197.190/1
http://92.##.197.190/2
http://92.##.197.190/3
http://92.##.197.190/4
http://92.##.197.190/5
http://92.##.197.190/v

'tl##box.top':5657

UDP

DNS ASK tl##box.top
DNS ASK sh#####apfejigguhfp.ru

Miscellaneous

Creates and executes the following

'%TEMP%\f84c.exe'
'%WINDIR%\227632042325014\svchost.exe'
'%TEMP%\1090425319.exe'
'%TEMP%\2243014645.exe'
'%TEMP%\1266839800.exe'

Executes the following

'%WINDIR%\notepad.exe' -c "%PROGRAMDATA%\ZRBEbQTcgq\cfg"
'%WINDIR%\syswow64\cmd.exe' /C WScript "%PROGRAMDATA%\ZRBEbQTcgq\r.vbs"
'%WINDIR%\notepad.exe' -c "%PROGRAMDATA%\ZRBEbQTcgq\cfgi"

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