Ransom.Win64.MOUNTLOCKER.A
Trojan.Win32.Zudochka.ewf (Kaspersky), Trojan-Ransom.FileCrypter (Ikarus)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It drops files as ransom note.
TECHNICAL DETAILS
96,768 bytes
Yes
05 Oct 2020
Displays message/message boxes, Encrypts files, Terminates processes
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Ransomware drops the following files:
- %User Temp%\{8 Characters}.bat
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It adds the following processes:
- %System%\vssadmin.exe delete shadows /all /Quiet
- cmd/c ""%User Temp%\{8 Characters}.bat" {Malware Path}\{Malware Name}" - Hide and Delete files in {Malware Folder}
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- {32 Hex Characters generated from Volume Serial ID}
Other System Modifications
This Ransomware adds the following registry entries:
HKEY_CURRENT_USER\Software\Classes\
.{Generated ID}\shell\Open
(Default) = explorer.exe RecoveryManual.html
Process Termination
This Ransomware terminates the following processes if found running in the affected system's memory:
- agntsvc
- bengine
- benetns
- beremote
- beserver
- dbeng50
- dbsnmp
- dfssvc
- dfsrs
- EduLink2SIMS
- encsvc
- excel
- fdhost
- firefox
- infopath
- isqlplussvc
- msaccess
- mspub
- mydesktopservice
- mydesktopqos
- mysql
- ocautoupds
- ocomm
- ocssd
- onenote
- oracle
- outlook
- OWSTIMER
- postgres
- powerpnt
- pvlsvr
- SAVAdminService
- SavService
- sqbcoreservice
- sophos
- steam
- swc_service
- synctime
- tbirdconfig
- thebat
- thunderbird
- veeam
- visio
- VxLockdownServer
- winword
- wordpad
- wsstracing
- WSSADMIN
- xfssvccon
Other Details
This Ransomware encrypts files with the following extensions:
- 000
- 001
- 1
- 101
- 103
- 108
- 110
- 123
- 128
- 1cd
- 1sp
- 1st
- 3
- 3d
- 3d4
- 3dd
- 3df
- 3df8
- 3dm
- 3dr
- 3ds
- 3dxml
- 3fr
- 3g2
- 3ga
- 3gp
- 3gp2
- 3mm
- 3pr
- 3w
- 4w7
- 602
- 7z
- 7zip
- 8
- 89t
- 89y
- 8ba
- 8bc
- 8be
- 8bf
- 8bi8
- 8bl
- 8bs
- 8bx
- 8by
- 8li
- 8svx
- 8xt
- 9xt
- 9xy
- dct
- d
- d3dbsp
- dac
- dadx
- dag
- dal
- dap
- darkness
- das
- dash
- dat
- database
- datx
- dayzprofile
- dazip
- db
- db-journal
- db0
- db3
- db_journal
- dba
- dbb
- dbc
- dbf
- dbfv
- dbk
- dbr
- dbs
- dbx
- dc2
- dc4
- dca
- dcd
- dcf
- dch
- dco
- dcp
- dcr
- dcs
- dct5
- dcu
- ddc
- ddcx
- ddd
- ddif
- ddoc
- ddrw
- dds
- deb
- debian
- dec
- ded
- default
- del
- dem
- der
- des
- desc
- description
- design
- desklink
- det
- deu
- dev
- dex
- dfe
- dfl
- dfm
- dft
- dfti
- dgc
- dgm
- dgn
- dgpd
- dgr
- dgrh
- dgs
- dhe
- dic
- did
- dif
- dii
- dim
- dime
- dip
- dir
- directory
- disc
- disco
- disk
- dit
- divx
- diz
- djbz
- djv
- djvu
- dk@p
- dlc
- dlg
- dmbk
- dmg
- dmp
- dmtemplate
- dmv
- dna
- dng
- dnl
- dob
- doc
- doc#
- docb
- doce
- docenx
- dochtml
- docl
- docm
- docmhtml
- docs
- docset
- docstates
- doct
- documentrevisions-v100
- docx
- docxl
- docxml
- dok
- dot
- dothtml
- dotm
- dotmenx
- dotx
- dotxenx
- dox
- doxy
- doz
- dp
- dpd
- dpi
- dpk
- dpl
- dpr
- drd
- dream
- drf
- drm
- drmx
- drmz
- drw
- dsc
- dsd
- dsdic
- dsf
- dsg
- dsk
- dsl
- dsn
- dsp
- dsy
- dtd
- dtm
- dtml
- dtp
- dtx
- dump
- dvb
- dvd
- dvi
- dvs
- dvx
- dvz
- dwd
- dwdoc
- dwf
- dwfx
- dwg
- dwlibrary
- dwp
- dwt
- dxb
- dxd
- dxe
- dxf
- dxg
- dxn
- dxr
- dxstudio
- dzp
- a$v
- a2c
- a5zfn
- aa
- aa3
- aaa
- aac
- aaf
- aah
- aaui
- ab4
- ab65
- abc
- abk
- abt
- abw
- ac2
- ac3
- ac5
- acc
- accdb
- accde
- accdr
- accdt
- ace
- acf
- ach
- acp
- acr
- acrobatsecuritysettings
- acrodata
- acroplugin
- acrypt
- act
- ad
- ada
- adb
- adc
- add
- ade
- adi
- adoc
- ados
- adox
- adp
- adpb
- adr
- ads
- adt
- aea
- aec
- aep
- aepx
- aes
- aet
- afdesign
- afm
- afp
- agd1
- agdl
- age3rec
- age3sav
- age3scn
- age3xrec
- age3xsav
- age3xscn
- age3yrec
- age3ysav
- age3yscn
- ahf
- ai
- aif
- aiff
- aim
- aip
- ais
- ait
- ak
- al
- al8
- ala
- alb3
- alb4
- alb5
- alb6
- ald
- ali
- allet
- alt3
- alt5
- amf
- aml
- amr
- amt
- amu
- amx
- amxx
- anl
- ann
- ans
- ansr
- anx
- aoi
- ap
- apa
- apd
- ape
- apf
- api
- apj
- apk
- apnx
- apo
- app
- approj
- apr
- apt
- apw
- apxl
- arc
- arch00
- arff
- ari
- arj
- aro
- arr
- ars
- arw
- as
- as$
- as3
- asa
- asc
- ascm
- ascx
- asd
- ase
- asf
- ashx
- ask
- asl
- asm
- asmx
- asn
- asnd
- asp
- aspx
- asr
- asset
- ast
- asv
- asvx
- asx
- ath
- atl
- atomsvc
- atw
- automaticdestinations-ms
- aux
- av
- avi
- avn
- avs
- awd
- awe
- awg
- awp
- aws
- awt
- aww
- awwp
- ax
- axx
- azf
- azs
- azw
- azw1
- azw3
- azw4
- b
- b2
- b27
- b2a
- back
- backup
- backupdb
- bad
- bak
- bak~
- bamboopaper
- bank
- bar
- bau
- bax
- bay
- bbcd
- bbl
- bbprojectd
- bbs
- bbxt
- bc5
- bc6
- bc7
- bcd
- bck
- bcp
- bdb
- bdb2
- bdp
- bdr
- bdt2
- bdt3
- bean
- bfa
- bgt
- bgv
- bi8
- bib
- bibtex
- bic
- big
- bik
- bil
- bin
- bina
- bitstak
- bizdocument
- bjl
- bk
- bk!
- bk1
- bk2
- bk3
- bk4
- bk5
- bk6
- bk7
- bk8
- bk9
- bkf
- bkg
- bkp
- bks
- bkup
- bld
- blend
- blend2
- blg
- blk
- blm
- blob
- blp
- bmc
- bmf
- bmk
- bml
- bmm
- bmml
- bmp
- bmpr
- bna
- boc
- book
- bop
- bp1
- bp2
- bp3
- bpf
- bpk
- bpl
- bpm
- bpmc
- bps
- bpw
- brd
- breaking_bad
- brh
- brl
- brs
- brx
- bsa
- bsk
- bso
- bsp
- bst
- btc
- btd
- btf
- btoa
- btx
- burn
- burntheme
- bvd
- bwd
- bwf
- bwp
- bxx
- bzabw
- c
- c2e
- c6
- cache
- cad
- cadoc
- cae
- cag
- calca
- cam
- camproj
- cap
- capt
- car
- caro
- cas
- cat
- catdrawing
- catfct
- catpart
- catproduct
- cawr
- cbf
- cbor
- cbr
- cbz
- cc
- ccc
- cccrrrppp
- ccd
- ccf
- cch
- ccitt
- cd
- cd1
- cd2
- cdc
- cdd
- cddz
- cdf
- cdi
- cdk
- cdl
- cdm
- cdml
- cdmm
- cdmz
- cdpz
- cdr
- cdr3
- cdr4
- cdr5
- cdr6
- cdrw
- cds
- cdt
- cdtx
- cdw
- cdx
- cdxml
- ce1
- ce2
- cef
- cer
- cerber
- cerber2
- cerber3
- cerc
- cert
- cf5
- cfd
- cfg
- cfm
- cfp
- cfr
- cgf
- cgfiletypetest
- cgi
- cgm
- cgp
- cgr
- chi
- chk
- chm
- chml
- chmprj
- chp
- chpscrap
- cht
- chtml
- cib
- cida
- cif
- cipo
- civ4worldbuildersave
- civbeyondswordsave
- cl2arc
- cl2doc
- clam
- clarify
- class
- clb
- clkd
- clkt
- clp
- clr
- cls
- clx
- cmf
- cml
- cmp
- cms
- cmt
- cmu
- cnf
- cng
- cnt
- cnv
- cod
- col
- comicdoc
- comiclife
- compositionmodel
- compositiontemplate
- con
- conf
- config
- contact
- converterx
- coverton
- cp
- cpc
- cpd
- cpdt
- cphd
- cpi
- cpio
- cpp
- cpr
- cpy
- cr2
- crashed
- craw
- crb
- crd
- creole
- cri
- crinf
- crjoker
- crptrgr
- crs
- crs3
- crt
- crtr
- crw
- crwl
- cry
- cryp1
- crypt
- crypted
- cryptolocker
- cryptowall
- cryptra
- crypz
- cs
- cs8
- csa
- cse
- csh
- csi
- csl
- cso
- csp
- csr
- css
- cst
- csv
- ctbl
- ctd
- cte
- ctf
- ctl
- ctt
- ctxt
- cty
- cue
- current
- cvj
- cvl
- cvw
- cw3
- cwf
- cwk
- cwn
- cwr
- cws
- cwwp
- cyi
- cys
- czvxce
- e3s
- e4a
- eap
- easmx
- ebc
- ebk
- ebs
- ec4
- ecc
- ecr
- edb
- edd
- edf
- edl
- edml
- edn
- edoc
- edrwx
- edt
- edz
- efa
- efax
- eff
- efl
- efm
- efr
- eftx
- efu
- efx
- egr
- egt
- ehp
- eif
- eip
- ekm
- el6
- eld
- elf
- elfo
- eln
- emc
- emf
- eml
- emlxpart
- emm
- enc
- enciphered
- encrypt
- encrypted
- enfpack
- enigma
- ent
- enx
- enyd
- eob
- eot
- ep
- epdf
- epf
- epk
- eprtx
- eps
- epsf
- ept
- epub
- eql
- erbsql
- erd
- ere
- erf
- err
- es
- es3
- esc
- esd
- esf
- esm
- esp
- ess
- esv
- et
- ete
- etng
- etnt
- ets
- etx
- euc
- evf
- evo
- evy
- ewl
- ex
- exc
- exd
- exf
- exif
- exprwdhtml
- exprwdxml
- exx
- ez
- ezc
- ezm
- ezs
- ezz
- f4v
- f90
- f96
- fac
- fadein
- fae
- fantom
- faq
- fax
- fb2
- fbd
- fbp6
- fbs
- fcd
- fcf
- fcstd
- fd
- fdb
- fdf
- fdoc
- fdr
- fds
- fdseq
- fdw
- fdx
- fed
- feed-ms
- feedsdb-ms
- ff
- ffa
- ffd
- ffdata
- fff
- ffl
- ffo
- fft
- ffx
- fh
- fhd
- fig
- fin
- fl
- fla
- flac
- flag
- flat
- flf
- flib
- flka
- flkb
- flm
- flp
- fls
- flt
- fltr
- flv
- flvv
- fly
- fm
- fm3
- fmc
- fmd
- fmf
- fml
- fmp
- fmp3
- fnf
- fo
- fodg
- fodp
- fods
- fodt
- folio
- for
- forge
- fos
- fountain
- fp
- fpage
- fpdoclib
- fpenc
- fphomeop
- fpk
- fplinkbar
- fpp
- fpt
- fpx
- fra
- frag
- frdat
- frdoc
- freepp
- frelf
- frm
- fs
- fsc
- fsd
- fsf
- fsh
- fsp
- fss
- ft10
- ft11
- ft7
- ft8
- ft9
- ftil
- ftr
- fun
- fwk
- fwtemplate
- fxd
- fxg
- fxo
- fxr
- fzh
- fzip
- ga3
- gam
- gan
- gbr
- gcsx
- gct
- gdb
- gdc
- gdoc
- ged
- gev
- gevl
- gfe
- gform
- gfx
- ggb
- ghe
- gho
- ghs
- gif
- gil
- giw
- glink
- glk
- glo
- glos
- gly
- gml
- gmp
- gnd
- gno
- gofin
- good
- gp4
- gpd
- gpf
- gpg
- gpn
- gpx
- gpz
- gra
- grade
- gray
- grey
- grf
- grk
- grle
- groups
- gry
- gs
- gsa
- gsf
- gsheet
- gslides
- gsm
- gthr
- gtp
- gui
- gul
- gv
- gvi
- gxk
- gxl
- gz
- gzig
- gzip
- h
- h1q
- h1s
- h1w
- h2o
- h3m
- h4r
- ha3
- haml
- hbk
- hbl
- hbx
- hcl
- hcw
- hda
- hdd
- hdl
- hdr
- hdt
- hdx
- hed
- help
- helpindex
- herbst
- hex
- hfd
- hft
- hhs
- hkdb
- hkx
- hlf
- hlp
- hlx
- hlx2
- hlz
- hm2
- hmskin
- hnd
- hoi4
- hot
- hp2
- hpd
- hpj
- hplg
- hpo
- hpp
- hps
- hpt
- hpw
- hqx
- hrx
- hs
- hsm
- hsx
- hta
- htm
- html
- htmls
- htmlz
- htms
- htm~
- htpasswd
- htz5
- hvpl
- hw3
- hwp
- hwpml
- hwt
- hxe
- hxi
- hxq
- hxr
- hxs
- hyp
- hype
- iab
- iaf
- ial
- ibank
- ibcd
- ibd
- ibk
- ibooks
- ibz
- icalevent
- icaltodo
- icc
- icml
- icmt
- ico
- ics
- icst
- icxs
- idap
- idc
- idd
- idl
- idml
- idp
- idx
- ie5
- ie6
- ie7
- ie8
- ie9
- iff
- ifp
- ign
- igr
- igs
- ihf
- ihp
- iif
- iiq
- iks
- ila
- ildoc
- img
- imp
- imr
- incp
- incpas
- ind
- indb
- indd
- indl
- indp
- indt
- inf
- info
- ink
- inld
- inlk
- inp
- inprogress
- inrs
- inss
- installhelper
- insx
- internetconnect
- inx
- ioca
- iof
- ipa
- ipf
- ipr
- ish1
- ish2
- ish3
- iso
- ispx
- isu
- isz
- itdb
- ite
- itl
- itm
- itmz
- itp
- its
- ivt
- iw44
- iwa
- iwd
- iwi
- iwprj
- iwtpl
- ix
- ixv
- jac
- jar
- jav
- java
- jb2
- jbc
- jbig
- jbig2
- jc
- jdd
- jfif
- jge
- jgz
- jhd
- jiaf
- jias
- jif
- jiff
- jnt
- joe
- jp1
- jpc
- jpe
- jpeg
- jpf
- jpg
- jpgx
- jpm
- jpw
- jrf
- jrl
- jrprint
- js
- jsd
- json
- jsp
- jspa
- jspx
- jtd
- jtdc
- jtt
- jtx
- just
- jw
- jwl
- jww
- k25
- kbd
- kbf
- kc2
- kdb
- kdbx
- kdc
- kde
- kdf
- kernel_complete
- kernel_pid
- kernel_time
- kes
- key
- key-tef
- keybtc@inbox_com
- keynote
- kf
- kfm
- kfp
- kid
- kimcilware
- kkk
- klq
- klw
- kml
- kmz
- knt
- kos
- kpdx
- kpr
- kraken
- kratos
- ksd
- ksp
- kss
- ksw
- kuip
- kwd
- kwm
- kwp
- laccdb
- lastlogin
- lat
- latex
- lax
- lay
- lay6
- layout
- lbf
- lbi
- lbl
- lcd
- lcf
- lcn
- ldb
- ldf
- lechiffre
- legion
- lfe
- lgp
- lhd
- lib
- lit
- litemod
- ll3
- llv
- lmd
- lngttarch2
- localstorage
- locked
- locky
- log
- logonxp
- lok
- lol!
- lot
- lp
- lp2
- lp7
- lpa
- lpc
- lpd
- lpdf
- lpx
- lrf
- ls5
- lst
- ltcx
- ltm
- ltr
- ltx
- lua
- lvd
- lvivt
- lvl
- lvw
- lwd
- lwo
- lwp
- lyx
- m
- m13
- m14
- m2
- m2ts
- m3u
- m3u8
- m4a
- m4p
- m4u
- m4v
- m7p
- ma
- maca
- mag
- magic
- maker
- maml
- man
- manu
- map
- mapimail
- marc
- markdn
- mars
- mass
- max
- maxfr
- maxm
- mb
- mbbk
- mbox
- mbx
- mc9
- mcd
- mcdx
- mcf
- mcgame
- mcmac
- mcmeta
- mcrp
- mcw
- md
- md0
- md1
- md2
- md3
- md5
- mda
- mdb
- mdbackup
- mdbhtml
- mdc
- mdccache
- mddata
- mdf
- mdg
- mdi
- mdk
- mdl
- mdn
- mds
- mecontact
- med
- mef
- meh
- mell
- mellel
- menu
- meo
- met
- metadata_never_index
- mf
- mfa
- mfp
- mfw
- mga
- mgmt
- mgourmet
- mgourmet3
- mhp
- mht
- mhtenx
- mhtmlenx
- mi
- mic
- micro
- mid
- mif
- mim
- mime
- mindnode
- mip
- mission
- mix
- mjd
- mjdoc
- mke
- mkv
- mla
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- mml
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- mny
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- mobi
- mod
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- mos
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- movie
- moz
- mp1
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- mp3
- mp4
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- mpa
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- mwpp
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- mydocs
- myi
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- narrative
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- ncd
- ncf
- nd
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- pdf_tsid
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- prel
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- pubhtml
- pubmhtml
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- purge
- puz
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- pwm
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- pwre
- pxd
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- py
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- qdf
- qed
- qel
- qfl
- qfxx
- qhp
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- qhtm
- qic
- qif
- qlgenerator
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- qrt
- qt
- qtq
- qtr
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- qvw
- qwd
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- qxt
- r00
- r01
- r02
- r03
- r0f
- r0z
- r3d
- r5a
- ra
- ra2
- raf
- ram
- ramd
- rap
- rar
- rat
- raw
- razy
- rb
- rbc
- rcb
- rd
- rd1
- rdb
- rdf
- rdfs
- rdi
- rdm
- rdo
- rdoc
- rdoc_options
- rdz
- re4
- rec
- recources
- rekt
- rels
- res
- resbuild
- rest
- result
- rev
- rf
- rf1
- rft
- rgn
- rgo
- rgss3a
- rha
- rhif
- rim
- rit
- rlf
- rll
- rm
- rm5
- rmd
- rmf
- rmh
- rna
- rnd
- rng
- rnt
- rnw
- ro3
- rofl
- roi
- rokku
- ros
- rov
- row
- rox
- rpf
- rpt
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- rrpa
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- rsdf
- rsdoc
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- rsw
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- rt_
- rtdf
- rte
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- rtf_
- rtfd
- rtk
- rtpi
- rts
- rtsl
- rtsx
- rtx
- rum
- run
- rv
- rvf
- rvt
- rw2
- rwl
- rwlibrary
- rwz
- rxdoc
- rzk
- rzx
- s3db
- s8bn
- sa5
- sa7
- sa8
- saas
- sad
- saf
- safe
- safetext
- sam
- sas7bdat
- sav
- save
- say
- sb
- sbn
- sbo
- sbpf
- sbsc
- sbst
- sbx
- sc2save
- scd
- scdoc
- sce
- sch
- scm
- scmt
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- scr
- scriv
- scrivx
- scs
- scspack
- scssc
- sct
- scw
- scx
- sd
- sd0
- sd1
- sda
- sdb
- sdc
- sdd
- sddraft
- sdf
- sdi
- sdl
- sdmdocument
- sdn
- sdo
- sdoc
- sdp
- sdr
- sds
- sdt
- sdv
- sdw
- search-ms
- secure
- securecrypted
- sef
- sel
- sen
- seq
- sequ
- server
- ses
- set
- setup
- sev
- sf
- sff
- sfs
- sfx
- sgf
- sgi
- sgl
- sgm
- sgml
- sgz
- sh
- sh6
- shar
- shb
- show
- shp
- shr
- shs
- shtml
- shw
- shx
- shy
- sic
- sid
- sidd
- sidn
- sie
- sik
- sis
- sky
- sla
- sldasm
- sldm
- sldprt
- sldx
- slf
- slk
- slm
- sln
- slt
- slz
- sm
- smd
- sme
- smf
- smh
- smlx
- smn
- smp
- sms
- smwt
- smx
- smz
- snb
- snf
- sng
- snk
- snp
- snt
- snx
- so
- soi
- spb
- spd
- spdf
- spk
- spl
- spm
- spml
- sppt
- spr
- sprt
- sprz
- spt
- sql
- sqlite
- sqlite3
- sqlitedb
- sqllite
- sqx
- sr2
- src
- srf
- srfl
- srs
- srt
- srw
- ssa
- ssh
- ssi
- ssiw
- ssm
- ssx
- st4
- st5
- st6
- st7
- st8
- stc
- std
- step
- sti
- stl
- stm
- stp
- stpz
- struct
- stt
- stw
- stx
- stxt
- sty
- sud
- suf
- sum
- surf
- surprise
- svd
- svdl
- svg
- svi
- svm
- svn
- svp
- svr
- svs
- swd
- swdoc
- sweb
- swf
- switch
- swp
- sxc
- sxd
- sxe
- sxg
- sxi
- sxl
- sxm
- sxml
- sxw
- syn
- syncdb
- szf
- t
- t01
- t03
- t05
- t10
- t12
- t13
- t14
- t2
- t2k
- t2t
- t4g
- t80
- ta1
- ta2
- ta9
- tabula-doc
- tabula-docstyle
- tah
- tar
- tax
- tax2009
- tax2013
- tax2014
- tb
- tbb
- tbd
- tbk
- tbkx
- tbl
- tbz2
- tcd
- tch
- tck
- tcx
- tdg
- tdl
- tdoc
- tdr
- te1
- template
- tex
- texi
- texinfo
- text
- textclipping
- textile
- tfd
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- tfr
- tfrd
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- tgz
- thm
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- tm
- tm3
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- tmlanguage
- tmv
- tmz
- tns
- tnsp
- toast
- toc
- topx
- tor
- torrent
- totalslayout
- tp
- tpl
- tpo
- tpsdb
- tpu
- tpx
- trashinfo
- trif
- trp
- ts
- tsc
- tt11
- tt2
- ttax
- ttt
- ttxt
- tu
- tur
- tvd
- twdi
- twdx
- tww
- tx
- txd
- txe
- txf
- txm
- txn
- txt
- txtrpt
- u3d
- uax
- ubz
- ucd
- udb
- udf
- udl
- uea
- uhtml
- ukr
- ulf
- uli
- ulys
- ump
- umx
- unity3d
- unr
- unx
- uof
- uop
- uos
- uot
- updf
- upk
- upoi
- upp
- urd-journal
- urf
- url
- urp
- usa
- usx
- ut2
- ut3
- utc
- utd
- ute
- utf8
- uti
- utm
- uts
- utx
- uu
- uud
- uue
- uvx
- uxx
- v
- v2i
- v2t
- val
- vault
- vb
- vbadoc
- vbd
- vbk
- vbox
- vbs
- vc
- vcal
- vcd
- vce
- vcf
- vcproj
- vcxproj
- vdf
- vdi
- vdo
- vdoc
- vdt
- venusf
- ver
- vf
- vfs0
- vhd
- vhdx
- view
- viz
- vlc
- vlt
- vmbx
- vmdk
- vmf
- vmg
- vmm
- vmsd
- vmt
- vmx
- vmxf
- vob
- voprefs
- vor
- vp
- vpk
- vpl
- vpp_pc
- vs
- vsd
- vsdx
- vsf
- vsi
- vspolicy
- vst
- vstx
- vtf
- vthought
- vtv
- vtx
- vvv
- vw
- vw3
- w
- w2p
- w3g
- w3x
- w51
- w52
- w60
- w61
- w6bn
- w6w
- w8bn
- w8tn
- wab
- wad
- waff
- wallet
- wallet001
- war
- wav
- wave
- waw
- wb
- wb2
- wb3
- wbk
- wbt
- wbxml
- wbz
- wcf
- wcl
- wcn
- wcp
- wcst
- wd0
- wd1
- wd2
- wdbn
- wdgt
- wdl
- wdn
- wdoc
- wdx9
- web
- webdoc
- webpart
- wep
- wflx
- wht
- windows10
- wiz
- wk!
- wk1
- wk3
- wk4
- wkb
- wki
- wkl
- wks
- wlb
- wld
- wll
- wls
- wlxml
- wm
- wm2d
- wma
- wmd
- wmdb
- wmf
- wmga
- wmk
- wml
- wmlc
- wmmp
- wmo
- wms
- wmv
- wmx
- wn
- wolf
- word
- wordlist
- wotreplay
- wow
- wp
- wp42
- wp5
- wp50
- wp6
- wp7
- wpa
- wpc2
- wpd
- wpd0
- wpd1
- wpd2
- wpd3
- wpe
- wpf
- wpk
- wpl
- wpost
- wps
- wpt
- wpw
- wr1
- wrf
- wri
- wrlk
- ws
- ws1
- ws2
- ws3
- ws4
- ws5
- ws6
- ws7
- wsc
- wsd
- wsh
- wsp
- wtbn
- wtd
- wtf
- wtmp
- wtp
- wts
- wtt
- wtx
- wvw
- wvx
- wwcx
- wwi
- wwl
- wws
- wwt
- wxmx
- wxp
- wyn
- wzn
- wzs
- x11
- x16
- x3f
- x3g
- xamlx
- xar
- xav
- xbd
- xbrl
- xci
- xcodeproj
- xda
- xdc
- xdf
- xdo
- xdoc
- xdw
- xf
- xfd
- xfdf
- xfi
- xfl
- xfn
- xfo
- xfp
- xfx
- xgml
- xht
- xhtm
- xhtml
- xif
- xig
- xis
- xjf
- xl
- xla
- xlam
- xlb
- xlc
- xle
- xlf
- xline
- xlist
- xlk
- xll
- xlm
- xlnk
- xlr
- xls
- xlsb
- xlse
- xlshtml
- xlsl
- xlsm
- xlst
- xlsx
- xlsx3gp
- xlsxl
- xlt
- xlthtml
- xltm
- xltx
- xlv
- xlw
- xlwx
- xma
- xmdf
- xml
- xmmap
- xmn
- xmp
- xms
- xmt_bin
- xmta
- xmvl
- xpd
- xpi
- xpm
- xps
- xpse
- xpt
- xpwe
- xqm
- xqr
- xqx
- xrdml
- xsc
- xsd
- xsig
- xsl
- xslt
- xtbl
- xtd
- xtg
- xtml
- xtps
- xtrl
- xv0
- xv2
- xv3
- xvg
- xvid
- xvl
- xwd
- xweb3htm
- xweb3html
- xweb4stm
- xweb4xml
- xwf
- xwp
- xxe
- xxx
- xy
- xy3
- xy4v
- xyd
- xyz
- yab
- ycbcra
- yenc
- yml
- ync
- yps
- yuv
- z02
- z04
- zap
- zcrypt
- zepto
- zip
- zip73i87a
- zipx
- zoo
- zps
- ztmp
- ztmp$efs
- zyklon
- zzz
It does the following:
- Accepts the following arguments:
- /log:C|F
- F - Create Log File
- C - Show Console
- /scan:{[l|L,n|N,s|S]}
- l|L - encrypts only Local Drives
- n|N - encrypts only Network Drives
- s|S - encrypts only Network Shares
- /marker:{Filename}
- Drops a file in the infected drive that serves as an infection marker
- Filename cannot have the following characters {., -, _}
- /nodel
- Does not drop the bat file and hide and delete the files in {Malware Folder}
- It modifies the registry so that opening an encrypted file opens the ransom note.
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file name:
- RecoveryManual.html
- ReadManual.{Generated ID}
It avoids encrypting files found in the following folders:
- System Volume Information
- $RECYCLE.BIN
- Windows
- $WINDOWS.~BT
- Windows.old
- Program Files
- Program Files (x86)
- WINNT
- NVIDIA
- SYSTEM.SAV
- PerfLog
- Intel
- Games
- Temp
- tmp
- microsoft
It appends the following extension to the file name of the encrypted files:
- .ReadManual.{Generated ID}
It drops the following file(s) as ransom note:
- {Encrypted Folder}\RecoveryManual.html
SOLUTION
9.800
16.274.03
08 Oct 2020
16.275.00
09 Oct 2020
Step 1
Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:
-
Troj.Win32.TRX.XXPE50FFF037
Step 2
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 3
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 4
Restart in Safe Mode
Step 5
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Classes\.{Generated ID}\shell\Open
- (Default) = explorer.exe RecoveryManual.html
- (Default) = explorer.exe RecoveryManual.html
Step 6
Search and delete this file
- {Encrypted Folder}\RecoveryManual.html
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Ransom.Win64.MOUNTLOCKER.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 8
Restore encrypted files from backup.
Step 9
Scan your computer with your Trend Micro product to delete files detected as Ransom.Win64.MOUNTLOCKER.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
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