Trojan.Siggen21.13622

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '%APPDATA%\<File name>.exe'

Creates or modifies the following files

<SYSTEM32>\tasks\<File name>
%APPDATA%\microsoft\windows\start menu\programs\startup\<File name>.lnk

Creates the following files on removable media

<Drive name for removable media>:\usb.exe
<Drive name for removable media>:\waterresourcesag.pptx.lnk
<Drive name for removable media>:\asaprojectcompetition.pptx.lnk
<Drive name for removable media>:\proposaltemplates.ppt.lnk
<Drive name for removable media>:\ksearch_esa_talk.ppt.lnk
<Drive name for removable media>:\accountsreceivable.ppt.lnk
<Drive name for removable media>:\writingcompletesarnarrative_1103.ppt.lnk
<Drive name for removable media>:\sim_gametheory_to_finance.ppt.lnk
<Drive name for removable media>:\breakpoint.png.lnk
<Drive name for removable media>:\cbz.png.lnk
<Drive name for removable media>:\cleanlyrics.png.lnk
<Drive name for removable media>:\gruenspecht_02172016.pptx.lnk
<Drive name for removable media>:\bg_search_box.png.lnk
<Drive name for removable media>:\tunpersonalca1.pem.lnk
<Drive name for removable media>:\systisoft.pem.lnk
<Drive name for removable media>:\irgeek.pem.lnk
<Drive name for removable media>:\investmentbankca_ca8.pem.lnk
<Drive name for removable media>:\delongcacert.pem.lnk
<Drive name for removable media>:\cert.pem.lnk
<Drive name for removable media>:\lom602.pdf.lnk
<Drive name for removable media>:\10thingscondoms.pdf.lnk
<Drive name for removable media>:\bc01.pdf.lnk
<Drive name for removable media>:\spib_pima.pdf.lnk
<Drive name for removable media>:\calibre.png.lnk
<Drive name for removable media>:\testwmv.wmv.lnk
<Drive name for removable media>:\contractualdeadlines.zip.lnk
<Drive name for removable media>:\contenttypes.rdf.lnk
<Drive name for removable media>:\national_autism_preparation_programs.xlsx.lnk
<Drive name for removable media>:\cee_mmsprogram_summary_public.xlsx.lnk
<Drive name for removable media>:\al.xlsx.lnk
<Drive name for removable media>:\2013_finalsummaryforweb.xlsx.lnk
<Drive name for removable media>:\productos.xls.lnk
<Drive name for removable media>:\removedtitles_records.xls.lnk
<Drive name for removable media>:\price030215.xls.lnk
<Drive name for removable media>:\excel_example.xls.lnk
<Drive name for removable media>:\guide_reorganization_mapping.xls.lnk
<Drive name for removable media>:\calculatorworksheet.xls.lnk
<Drive name for removable media>:\dualectls.pdf.lnk
<Drive name for removable media>:\fiche_inscription_2015.xls.lnk
<Drive name for removable media>:\babyboymaintoscenesbackground.wmv.lnk
<Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv.lnk
<Drive name for removable media>:\flower_trans_matte.wmv.lnk
<Drive name for removable media>:\router_manual.rtf.lnk
<Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf.lnk
<Drive name for removable media>:\pandp.rtf.lnk
<Drive name for removable media>:\military_callsigns_0311.rtf.lnk
<Drive name for removable media>:\phytoremediation.rtf.lnk
<Drive name for removable media>:\taxus_baccata.rdf.lnk
<Drive name for removable media>:\foaf.rdf.lnk
<Drive name for removable media>:\stoc13_ml_quoc_le.pptx.lnk
<Drive name for removable media>:\elvisimp.rdf.lnk
<Drive name for removable media>:\clip_480_5sec_6mbps_h264.mp4.lnk
<Drive name for removable media>:\glidescope_review_rev_010.docx.lnk
<Drive name for removable media>:\hadac_newsletter_july_2010_final.docx.lnk
<Drive name for removable media>:\aoc_saq_d_v3_merchant.docx.lnk
<Drive name for removable media>:\nwfieldnotes1966.docx.lnk
<Drive name for removable media>:\adhd_and_obesity.docx.lnk
<Drive name for removable media>:\508softwareandos.doc.lnk
<Drive name for removable media>:\hanni_umami_chapter.doc.lnk
<Drive name for removable media>:\applicantform_en.doc.lnk
<Drive name for removable media>:\sdkfailsafeemulator.cer.lnk
<Drive name for removable media>:\sdksampleunprivdeveloper.cer.lnk
<Drive name for removable media>:\sdksampleprivdeveloper.cer.lnk
<Drive name for removable media>:\sdszfo.docx.lnk
<Drive name for removable media>:\contoso_1.cer.lnk
<Drive name for removable media>:\coffee.bmp.lnk
<Drive name for removable media>:\tileimage.bmp.lnk
<Drive name for removable media>:\dialmap.bmp.lnk
<Drive name for removable media>:\dashborder_192.bmp.lnk
<Drive name for removable media>:\dial.bmp.lnk
<Drive name for removable media>:\archer.avi.lnk
<Drive name for removable media>:\000814251_video_01.avi.lnk
<Drive name for removable media>:\delete.avi.lnk
<Drive name for removable media>:\join.avi.lnk
<Drive name for removable media>:\correct.avi.lnk
<Drive name for removable media>:\dashborder_96.bmp.lnk
<Drive name for removable media>:\3.jpeg.lnk
<Drive name for removable media>:\etc6_m_1.mov.lnk
<Drive name for removable media>:\jre-7u75-windows-i586-iftw.exe.lnk
<Drive name for removable media>:\pushkin.jpg.lnk
<Drive name for removable media>:\2.jpg.lnk
<Drive name for removable media>:\168.jpg.lnk
<Drive name for removable media>:\region-north-karelia.jpg.lnk
<Drive name for removable media>:\1189.jpg.lnk
<Drive name for removable media>:\4f0bf7ff71f28.jpg.lnk
<Drive name for removable media>:\region-north-karelia.jpeg.lnk
<Drive name for removable media>:\2.jpeg.lnk
<Drive name for removable media>:\210252809.jpeg.lnk
<Drive name for removable media>:\4f0bf7ff71f28.jpeg.lnk
<Drive name for removable media>:\video.mp4.lnk
<Drive name for removable media>:\168.jpeg.lnk
<Drive name for removable media>:\parnas_01.jpeg.lnk
<Drive name for removable media>:\iisstart.html.lnk
<Drive name for removable media>:\howto-index.html.lnk
<Drive name for removable media>:\about.html.lnk
<Drive name for removable media>:\ituneshelpunavailable.htm.lnk
<Drive name for removable media>:\browse.htm.lnk
<Drive name for removable media>:\tree_view.htm.lnk
<Drive name for removable media>:\alert.htm.lnk
<Drive name for removable media>:\calc.exe.lnk
<Drive name for removable media>:\notepad.exe.lnk
<Drive name for removable media>:\file_p_00000000_1371597592.docx.lnk
<Drive name for removable media>:\calculatorworksheet.zip.lnk

Malicious functions

To complicate detection of its presence in the operating system,

adds antivirus exclusion:

'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '<Full path to file>'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '%APPDATA%\<File name>.exe'

Modifies file system

Creates the following files

%APPDATA%\<File name>.exe

Sets the 'hidden' attribute to the following files

<Drive name for removable media>:\usb.exe

Deletes the following files

%APPDATA%\<File name>.exe

Substitutes the following files

%APPDATA%\<File name>.exe

Miscellaneous

Creates and executes the following

'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '<Full path to file>'' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '<File name>.exe'' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '%APPDATA%\<File name>.exe'' (with hidden window)
'<SYSTEM32>\schtasks.exe' /create /f /RL HIGHEST /sc minute /mo 1 /tn "<File name>" /tr "%APPDATA%\<File name>.exe"' (with hidden window)
'%APPDATA%\<File name>.exe' ' (with hidden window)

Executes the following

'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '<File name>.exe'
'<SYSTEM32>\schtasks.exe' /create /f /RL HIGHEST /sc minute /mo 1 /tn "<File name>" /tr "%APPDATA%\<File name>.exe"
'<SYSTEM32>\taskeng.exe' {C1775B03-53A2-40A3-9FEB-3D65C223E0F2} S-1-5-21-1238866942-1249195528-555854008-1000:ixtuxzwdfix\user:Interactive:[1]

Технологии

Термины

Обучение и просвещение

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