Trojan.Encoder.11208

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '{5CEA83AB-ACC8-0C2B-3154-392E93B023CE}' = '%ALLUSERSPROFILE%\{C0FAAB9B-84F8-903B-3154-392E93B023CE}\6d457b04.exe'

Creates or modifies the following files

<SYSTEM32>\tasks\{5cea83ab-acc8-0c2b-3154-392e93b023ce}

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>:\asaprojectcompetition.pptx.lnk
<Drive name for removable media>:\sacs_presentation_sacs_qep_improving_rt_education_final.ppt.lnk
<Drive name for removable media>:\sim_gametheory_to_finance.ppt.lnk
<Drive name for removable media>:\file1.ppt.lnk
<Drive name for removable media>:\breakpoint.png.lnk
<Drive name for removable media>:\asm.png.lnk
<Drive name for removable media>:\calibre.png.lnk
<Drive name for removable media>:\block.png.lnk
<Drive name for removable media>:\hhhlcert.pem.lnk
<Drive name for removable media>:\tunpersonalca1.pem.lnk
<Drive name for removable media>:\ck.pem.lnk
<Drive name for removable media>:\ck_ugo.pem.lnk
<Drive name for removable media>:\dualectls.pdf.lnk
<Drive name for removable media>:\spib_pima.pdf.lnk
<Drive name for removable media>:\bc01.pdf.lnk
<Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf.lnk
<Drive name for removable media>:\lom602.pdf.lnk
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf.lnk
<Drive name for removable media>:\video.mp4.lnk
<Drive name for removable media>:\51.mp4.lnk
<Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
<Drive name for removable media>:\video_1.mp4.lnk
<Drive name for removable media>:\waterresourcesag.pptx.lnk
<Drive name for removable media>:\gruenspecht_02172016.pptx.lnk
<Drive name for removable media>:\middaugh_keynote.pptx.lnk
<Drive name for removable media>:\foaf.rdf.lnk
<Drive name for removable media>:\subjectclassification.zip.lnk
<Drive name for removable media>:\productos.zip.lnk
<Drive name for removable media>:\fiche_inscription_2015.zip.lnk
<Drive name for removable media>:\2013_finalsummaryforweb.xlsx.lnk
<Drive name for removable media>:\highly_cited_2001.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>:\disclosuredetails.xlsx.lnk
<Drive name for removable media>:\subjectclassification.xls.lnk
<Drive name for removable media>:\guide_reorganization_mapping.xls.lnk
<Drive name for removable media>:\excel_example.xls.lnk
<Drive name for removable media>:\1sm_price.xls.lnk
<Drive name for removable media>:\price030215.xls.lnk
<Drive name for removable media>:\productos.xls.lnk
<Drive name for removable media>:\fiche_inscription_2015.xls.lnk
<Drive name for removable media>:\babyboymaintoscenesbackground.wmv.lnk
<Drive name for removable media>:\waterlandhealthkano.rtf.lnk
<Drive name for removable media>:\phytoremediation.rtf.lnk
<Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf.lnk
<Drive name for removable media>:\router_manual.rtf.lnk
<Drive name for removable media>:\krsweden.rtf.lnk
<Drive name for removable media>:\skos.rdf.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>:\price.zip.lnk
<Drive name for removable media>:\clip_480_5sec_6mbps_h264.mp4.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>:\issi2013_template_for_posters.docx.lnk
<Drive name for removable media>:\adhd_and_obesity.docx.lnk
<Drive name for removable media>:\holycrosschurchinstructions.docx.lnk
<Drive name for removable media>:\sdszfo.docx.lnk
<Drive name for removable media>:\file_p_00000000_1371597592.docx.lnk
<Drive name for removable media>:\hadac_newsletter_july_2010_final.docx.lnk
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc.lnk
<Drive name for removable media>:\lisp_success.doc.lnk
<Drive name for removable media>:\fi51.doc.lnk
<Drive name for removable media>:\applicantform_en.doc.lnk
<Drive name for removable media>:\february_catalogue__2015.doc.lnk
<Drive name for removable media>:\ovp25012015.doc.lnk
<Drive name for removable media>:\cveuropeo.doc.lnk
<Drive name for removable media>:\contoso_1.cer.lnk
<Drive name for removable media>:\pmd.cer.lnk
<Drive name for removable media>:\contosoroot_1.cer.lnk
<Drive name for removable media>:\dial.bmp.lnk
<Drive name for removable media>:\default.bmp.lnk
<Drive name for removable media>:\dashborder_144.bmp.lnk
<Drive name for removable media>:\coffee.bmp.lnk
<Drive name for removable media>:\dashborder_120.bmp.lnk
<Drive name for removable media>:\dialmap.bmp.lnk
<Drive name for removable media>:\correct.avi.lnk
<Drive name for removable media>:\thlps_keeper_mayer_1965.docx.lnk
<Drive name for removable media>:\glidescope_review_rev_010.docx.lnk
<Drive name for removable media>:\skypesetup.exe.lnk
<Drive name for removable media>:\tcm851ax32.exe.lnk
<Drive name for removable media>:\region-north-karelia.jpg.lnk
<Drive name for removable media>:\1189.jpg.lnk
<Drive name for removable media>:\parnas_01.jpg.lnk
<Drive name for removable media>:\168.jpg.lnk
<Drive name for removable media>:\13.jpg.lnk
<Drive name for removable media>:\pushkin.jpg.lnk
<Drive name for removable media>:\parnas_01.jpeg.lnk
<Drive name for removable media>:\13.jpeg.lnk
<Drive name for removable media>:\1189.jpeg.lnk
<Drive name for removable media>:\210252809.jpeg.lnk
<Drive name for removable media>:\168.jpeg.lnk
<Drive name for removable media>:\iisstart.html.lnk
<Drive name for removable media>:\2.jpeg.lnk
<Drive name for removable media>:\adadsi.html.lnk
<Drive name for removable media>:\trivial-merge.html.lnk
<Drive name for removable media>:\about.html.lnk
<Drive name for removable media>:\tree_view.html.lnk
<Drive name for removable media>:\iisstart.htm.lnk
<Drive name for removable media>:\about.htm.lnk
<Drive name for removable media>:\browse.htm.lnk
<Drive name for removable media>:\advice_process.htm.lnk
<Drive name for removable media>:\trivial-merge.htm.lnk
<Drive name for removable media>:\utorrent.exe.lnk
<Drive name for removable media>:\chromesetup.exe.lnk
<Drive name for removable media>:\3.jpg.lnk
<Drive name for removable media>:\contractualdeadlines.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%\{c0faab9b-84f8-903b-3154-392e93b023ce}\6d457b04.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

'<Full path to file>' ' (with hidden window)
'%WINDIR%\syswow64\svchost.exe' ' (with hidden window)

Executes the following

'%WINDIR%\syswow64\svchost.exe'

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