Trojan.Siggen21.2696

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run] '{916A8CCE-6417-832A-4081-739AEFA14383}' = '%ALLUSERSPROFILE%\{0D7AA4FE-4C27-1F3A-4081-739AEFA14383}\a0c57461.exe'

Creates or modifies the following files

<SYSTEM32>\tasks\{916a8cce-6417-832a-4081-739aefa14383}

Creates the following files on removable media

<Drive name for removable media>:\{1ae78717-a934-f82e-bb75-5330e2af5ce8}\8ad0c29c-3f20-9a18-0766-fe9e8c1ac147.exe
<Drive name for removable media>:\indogerman2010.pptx.lnk
<Drive name for removable media>:\waterresourcesag.pptx.lnk
<Drive name for removable media>:\middaugh_keynote.pptx.lnk
<Drive name for removable media>:\stoc13_ml_quoc_le.pptx.lnk
<Drive name for removable media>:\ppswamp.ppt.lnk
<Drive name for removable media>:\mappingconcepthubberlin.ppt.lnk
<Drive name for removable media>:\sim_gametheory_to_finance.ppt.lnk
<Drive name for removable media>:\proposaltemplates.ppt.lnk
<Drive name for removable media>:\metac.ppt.lnk
<Drive name for removable media>:\asm.png.lnk
<Drive name for removable media>:\bg_search_box.png.lnk
<Drive name for removable media>:\cbz.png.lnk
<Drive name for removable media>:\background.png.lnk
<Drive name for removable media>:\ck_ugo.pem.lnk
<Drive name for removable media>:\irgeek.pem.lnk
<Drive name for removable media>:\hhhlcert.pem.lnk
<Drive name for removable media>:\systisoft.pem.lnk
<Drive name for removable media>:\investmentbankca_ca8.pem.lnk
<Drive name for removable media>:\ck.pem.lnk
<Drive name for removable media>:\cert.pem.lnk
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf.lnk
<Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf.lnk
<Drive name for removable media>:\bc01.pdf.lnk
<Drive name for removable media>:\hypothyroidism_slides.pptx.lnk
<Drive name for removable media>:\roozenedowebinar.pptx.lnk
<Drive name for removable media>:\asaprojectcompetition.pptx.lnk
<Drive name for removable media>:\sioc.rdf.lnk
<Drive name for removable media>:\removedtitles_records.zip.lnk
<Drive name for removable media>:\price.zip.lnk
<Drive name for removable media>:\productos.zip.lnk
<Drive name for removable media>:\contractualdeadlines.zip.lnk
<Drive name for removable media>:\2013_smccc_competition_points_jul2013.xlsx.lnk
<Drive name for removable media>:\al.xlsx.lnk
<Drive name for removable media>:\national_autism_preparation_programs.xlsx.lnk
<Drive name for removable media>:\contractualdeadlines.xls.lnk
<Drive name for removable media>:\1sm_price.xls.lnk
<Drive name for removable media>:\fiche_inscription_2015.xls.lnk
<Drive name for removable media>:\productos.xls.lnk
<Drive name for removable media>:\testwmv.wmv.lnk
<Drive name for removable media>:\calculatorworksheet.xls.lnk
<Drive name for removable media>:\static_electricity_easy_and_quick_activities.rtf.lnk
<Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf.lnk
<Drive name for removable media>:\krsweden.rtf.lnk
<Drive name for removable media>:\router_manual.rtf.lnk
<Drive name for removable media>:\swc_2009-03-02.rdf.lnk
<Drive name for removable media>:\elvisimp.rdf.lnk
<Drive name for removable media>:\skos.rdf.lnk
<Drive name for removable media>:\schema.rdf.lnk
<Drive name for removable media>:\taxus_baccata.rdf.lnk
<Drive name for removable media>:\20140114.rdf.lnk
<Drive name for removable media>:\contenttypes.rdf.lnk
<Drive name for removable media>:\subjectclassification.zip.lnk
<Drive name for removable media>:\dualectls.pdf.lnk
<Drive name for removable media>:\clip_480_5sec_6mbps_h264.mp4.lnk
<Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4.lnk
<Drive name for removable media>:\calc.exe.lnk
<Drive name for removable media>:\chromesetup.exe.lnk
<Drive name for removable media>:\skypesetup.exe.lnk
<Drive name for removable media>:\tcm851ax32.exe.lnk
<Drive name for removable media>:\issi2013_template_for_posters.docx.lnk
<Drive name for removable media>:\aoc_saq_d_v3_merchant.docx.lnk
<Drive name for removable media>:\thlps_keeper_mayer_1965.docx.lnk
<Drive name for removable media>:\sdszfo.docx.lnk
<Drive name for removable media>:\ovp25012015.doc.lnk
<Drive name for removable media>:\cveuropeo.doc.lnk
<Drive name for removable media>:\508softwareandos.doc.lnk
<Drive name for removable media>:\lisp_success.doc.lnk
<Drive name for removable media>:\february_catalogue__2015.doc.lnk
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc.lnk
<Drive name for removable media>:\fi51.doc.lnk
<Drive name for removable media>:\contoso.cer.lnk
<Drive name for removable media>:\sdkfailsafeemulator.cer.lnk
<Drive name for removable media>:\dashborder_120.bmp.lnk
<Drive name for removable media>:\dial.bmp.lnk
<Drive name for removable media>:\dashborder_192.bmp.lnk
<Drive name for removable media>:\dashborder_96.bmp.lnk
<Drive name for removable media>:\split.avi.lnk
<Drive name for removable media>:\delete.avi.lnk
<Drive name for removable media>:\utorrent.exe.lnk
<Drive name for removable media>:\dotnetfx45_full_setup.exe.lnk
<Drive name for removable media>:\advice_process.htm.lnk
<Drive name for removable media>:\about.htm.lnk
<Drive name for removable media>:\video.mp4.lnk
<Drive name for removable media>:\scan.mov.lnk
<Drive name for removable media>:\spanner.mov.lnk
<Drive name for removable media>:\dag2_panel1_320_ref.mov.lnk
<Drive name for removable media>:\13.jpg.lnk
<Drive name for removable media>:\parnas_01.jpg.lnk
<Drive name for removable media>:\1189.jpg.lnk
<Drive name for removable media>:\168.jpg.lnk
<Drive name for removable media>:\4f0bf7ff71f28.jpg.lnk
<Drive name for removable media>:\2.jpg.lnk
<Drive name for removable media>:\210252809.jpeg.lnk
<Drive name for removable media>:\3.jpeg.lnk
<Drive name for removable media>:\168.jpeg.lnk
<Drive name for removable media>:\region-north-karelia.jpeg.lnk
<Drive name for removable media>:\4f0bf7ff71f28.jpeg.lnk
<Drive name for removable media>:\13.jpeg.lnk
<Drive name for removable media>:\browse.html.lnk
<Drive name for removable media>:\ituneshelpunavailable.html.lnk
<Drive name for removable media>:\tree_view.html.lnk
<Drive name for removable media>:\api-hashmap.html.lnk
<Drive name for removable media>:\adadsi.html.lnk
<Drive name for removable media>:\64bit_notes.htm.lnk
<Drive name for removable media>:\ituneshelpunavailable.htm.lnk
<Drive name for removable media>:\trivial-merge.htm.lnk
<Drive name for removable media>:\51.mp4.lnk
<Drive name for removable media>:\calculatorworksheet.zip.lnk

Malicious functions

Injects code into

the following system processes:

%WINDIR%\syswow64\svchost.exe

the following user processes:

iexplore.exe

Modifies file system

Creates the following files

%ALLUSERSPROFILE%\{0d7aa4fe-4c27-1f3a-4081-739aefa14383}\a0c57461.exe

Deletes the following files

<Drive name for removable media>:\{1ae78717-a934-f82e-bb75-5330e2af5ce8}\8ad0c29c-3f20-9a18-0766-fe9e8c1ac147.exe

Substitutes the following files

<Drive name for removable media>:\{1ae78717-a934-f82e-bb75-5330e2af5ce8}\8ad0c29c-3f20-9a18-0766-fe9e8c1ac147.exe

Deletes itself.

Miscellaneous

Creates and executes the following

'%WINDIR%\syswow64\svchost.exe' ' (with hidden window)

Executes the following

'%WINDIR%\syswow64\svchost.exe'

Tecnologie

Termini

Formazione ed informazione

Falsi miti

Technical Information

Curing recommendations

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