Trojan.DownLoader21.27873

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\] 'Microsoft Windows Manager' = '%WINDIR%\M-50504530320145090430250320460\winmgr.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'Microsoft Windows Manager' = '%WINDIR%\M-50504530320145090430250320460\winmgr.exe'

Creates the following files on removable media

<Drive name for removable media>:\manager.js
<Drive name for removable media>:\foaf.rdf
<Drive name for removable media>:\sioc.rdf
<Drive name for removable media>:\asaprojectcompetition.pptx
<Drive name for removable media>:\samieee_obiee_presentation.pptx
<Drive name for removable media>:\indogerman2010.pptx
<Drive name for removable media>:\iso27k_isms_implementation_and_certification_process_overview_v2.pptx
<Drive name for removable media>:\ksearch_esa_talk.ppt
<Drive name for removable media>:\file1.ppt
<Drive name for removable media>:\sacs_presentation_sacs_qep_improving_rt_education_final.ppt
<Drive name for removable media>:\ppswamp.ppt
<Drive name for removable media>:\writingcompletesarnarrative_1103.ppt
<Drive name for removable media>:\sim_gametheory_to_finance.ppt
<Drive name for removable media>:\metac.ppt
<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>:\cleanlyrics.png
<Drive name for removable media>:\bg_search_box.png
<Drive name for removable media>:\arrow-down.png
<Drive name for removable media>:\background.png
<Drive name for removable media>:\hhhlcert.pem
<Drive name for removable media>:\delongcacert.pem
<Drive name for removable media>:\server.pem
<Drive name for removable media>:\investmentbankca_ca8.pem
<Drive name for removable media>:\ck.pem
<Drive name for removable media>:\10thingscondoms.pdf
<Drive name for removable media>:\ck_ugo.pem
<Drive name for removable media>:\swc_2009-03-02.rdf
<Drive name for removable media>:\skos.rdf
<Drive name for removable media>:\price.zip
<Drive name for removable media>:\contractualdeadlines.zip
<Drive name for removable media>:\subjectclassification.zip
<Drive name for removable media>:\excel_example.zip
<Drive name for removable media>:\national_autism_preparation_programs.xlsx
<Drive name for removable media>:\applicant.xlsx
<Drive name for removable media>:\cee_mmsprogram_summary_public.xlsx
<Drive name for removable media>:\trtf_matrix2012_oct.xlsx
<Drive name for removable media>:\disclosuredetails.xlsx
<Drive name for removable media>:\suspendedcompanies.xlsx
<Drive name for removable media>:\1sm_price.xls
<Drive name for removable media>:\fiche_inscription_2015.xls
<Drive name for removable media>:\calculatorworksheet.xls
<Drive name for removable media>:\pushkin.jpeg
<Drive name for removable media>:\contractualdeadlines.xls
<Drive name for removable media>:\removedtitles_records.xls
<Drive name for removable media>:\flower_trans_matte.wmv
<Drive name for removable media>:\passport_pal.wmv
<Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv
<Drive name for removable media>:\static_electricity_easy_and_quick_activities.rtf
<Drive name for removable media>:\phytoremediation.rtf
<Drive name for removable media>:\router_manual.rtf
<Drive name for removable media>:\pubnet_855.rtf
<Drive name for removable media>:\fungalnameauthors.rtf
<Drive name for removable media>:\pandp.rtf
<Drive name for removable media>:\elvisimp.rdf
<Drive name for removable media>:\fil_20060629111052.pdf
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf
<Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4
<Drive name for removable media>:\nwfieldnotes1966.docx
<Drive name for removable media>:\aoc_saq_d_v3_merchant.docx
<Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc
<Drive name for removable media>:\508softwareandos.doc
<Drive name for removable media>:\lisp_success.doc
<Drive name for removable media>:\february_catalogue__2015.doc
<Drive name for removable media>:\sdksampleunprivdeveloper.cer
<Drive name for removable media>:\testee.cer
<Drive name for removable media>:\contoso.cer
<Drive name for removable media>:\contoso_1.cer
<Drive name for removable media>:\contosoroot.cer
<Drive name for removable media>:\dashborder_144.bmp
<Drive name for removable media>:\coffee.bmp
<Drive name for removable media>:\toolbar.bmp
<Drive name for removable media>:\dialmap.bmp
<Drive name for removable media>:\split.avi
<Drive name for removable media>:\correct.avi
<Drive name for removable media>:\000814251_video_01.avi
<Drive name for removable media>:\join.avi
<Drive name for removable media>:\delete.avi
<Drive name for removable media>:\_\devicemanager\manager.exe
<Drive name for removable media>:\.lnk
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\devicemanager.bat
<Drive name for removable media>:\sdszfo.docx
<Drive name for removable media>:\skypesetup.exe
<Drive name for removable media>:\holycrosschurchinstructions.docx
<Drive name for removable media>:\chromesetup.exe
<Drive name for removable media>:\spanner.mov
<Drive name for removable media>:\dotnetfx45_full_setup.exe
<Drive name for removable media>:\scan.mov
<Drive name for removable media>:\region-north-karelia.jpg
<Drive name for removable media>:\4f0bf7ff71f28.jpg
<Drive name for removable media>:\1189.jpg
<Drive name for removable media>:\168.jpg
<Drive name for removable media>:\210252809.jpg
<Drive name for removable media>:\13.jpg
<Drive name for removable media>:\2.jpg
<Drive name for removable media>:\parnas_01.jpeg
<Drive name for removable media>:\4f0bf7ff71f28.jpeg
<Drive name for removable media>:\2.jpeg
<Drive name for removable media>:\productos.xls
<Drive name for removable media>:\1sm_price.zip
<Drive name for removable media>:\howto-index.html
<Drive name for removable media>:\trivial-merge.html
<Drive name for removable media>:\tree_view.html
<Drive name for removable media>:\alert.htm
<Drive name for removable media>:\advice_process.htm
<Drive name for removable media>:\about.htm
<Drive name for removable media>:\iisstart.htm
<Drive name for removable media>:\ituneshelpunavailable.htm
<Drive name for removable media>:\browse.htm
<Drive name for removable media>:\64bit_notes.htm
<Drive name for removable media>:\wrar520.exe
<Drive name for removable media>:\utorrent.exe
<Drive name for removable media>:\168.jpeg
<Drive name for removable media>:\calculatorworksheet.zip

Malicious functions

To complicate detection of its presence in the operating system,

blocks execution of the following system utilities:

Windows Defender

Injects code into

the following user processes:

winmgr.exe

Searches for windows to

detect analytical utilities:

ClassName: 'OLLYDBG', WindowName: ''
ClassName: 'PROCEXPL', WindowName: ''

detect programs and games:

ClassName: 'GDKWINDOWTOPLEVEL', WindowName: ''

Modifies file system

Creates the following files

%WINDIR%\m-50504530320145090430250320460\winmgr.exe
%TEMP%\mzfiorbyeg.bat

Sets the 'hidden' attribute to the following files

%WINDIR%\m-50504530320145090430250320460\winmgr.exe
<Drive name for removable media>:\manager.js
<Drive name for removable media>:\devicemanager.bat
<Drive name for removable media>:\autorun.inf

Deletes itself.

Network activity

Connects to

'22#.#81.87.80':5050

UDP

DNS ASK ho##5050.ru
DNS ASK ho##5051.ru

Miscellaneous

Searches for the following windows

ClassName: 'PORTMONCLASS' WindowName: ''

Creates and executes the following

'%WINDIR%\m-50504530320145090430250320460\winmgr.exe'
'%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\mzfiorbyeg.bat" "' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\mzfiorbyeg.bat" "

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

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Technical Information

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