Home / malware Win32/Sarento
First posted on 06 November 2015.
Source: MicrosoftAliases :
There are no other names known for Win32/Sarento.
Explanation :
Threat behavior
Installation
This threat can create files in your PC, for example:
- %desktop%\encryptor_raas_readme_liesmich.txt
Payload
Encrypts your files
This threat encrypts files on your PC that have the following extensions:
- .2fs
- .3dm
- .3ds
- .3g2
- .3gp
- .7z
- .aac
- .abbu
- .abw
- .accdb
- .adr
- .ahk
- .ai
- .aif
- .alt
- .ape
- .apk
- .arc
- .arv
- .as
- .asc
- .asf
- .ashdisc
- .asm
- .asp
- .aspx
- .asx
- .aup
- .avi
- .ba0
- .backup
- .bak
- .bas
- .bbb
- .bc
- .bc!
- .bdb
- .bde
- .bdf
- .bdg
- .bdi
- .bdk
- .bdl
- .bdm
- .bdmv
- .bdsproj
- .bdw
- .bdx
- .bee
- .ben
- .bes
- .bex
- .bexpk
- .bf
- .bf2
- .bfa
- .bfb
- .bfe
- .bff
- .bgz
- .bhx
- .bib
- .bibtex
- .bik
- .bkf
- .bkp
- .bks
- .bkup
- .bmp
- .bpn
- .bson
- .btd
- .bz2
- .c
- .c++
- .cad
- .cadp
- .caf
- .cbu
- .cda
- .cdf
- .cdi
- .cdr
- .cdx
- .cer
- .cert
- .cfg
- .cfm
- .cgi
- .chr
- .class
- .cnt
- .cod
- .conf
- .cpio
- .cpp
- .crd
- .crt
- .crypt7
- .cs
- .csproj
- .csr
- .csv
- .cue
- .d64
- .data
- .db3
- .dbf
- .dbt
- .dbx
- .dds
- .ddz
- .dem
- .deviceids
- .df
- .dfd
- .dfproj
- .dia
- .dir
- .diz
- .dmg
- .doc
- .docm
- .docx
- .dot
- .dqy
- .dsb
- .dsn
- .dta
- .dtr
- .dtv
- .dwg
- .dxf
- .ebk
- .eddx
- .edoc
- .eml
- .emlx
- .enc
- .eps
- .epub
- .es
- .es~
- .ex4
- .exp
- .fdb
- .fdf
- .ff1
- .ffs_db
- .ffu
- .fh10
- .fh11
- .fi2
- .fig
- .fil
- .flac
- .flg
- .flp
- .flv
- .fmd
- .fpt
- .ftp
- .gam
- .gar
- .gcode
- .gho
- .gid
- .gif
- .gla
- .gpg
- .gpx
- .gz
- .h
- .h++
- .hbk
- .hdd
- .hds
- .hex
- .hpp
- .hst
- .htc
- .ico
- .ics
- .idml
- .idx
- .if
- .iff
- .imb
- .img
- .imh
- .iml
- .imm
- .in0
- .indd
- .int
- .ipd
- .iso
- .isz
- .iwa
- .j2k
- .jad
- .jar
- .java
- .jdb
- .jks
- .jmf
- .jp2
- .jpeg
- .jpf
- .jpg
- .jpm
- .jpx
- .jsp
- .jspa
- .jspx
- .jst
- .k1f
- .kb1
- .kcf
- .kch
- .kcl
- .kdb
- .kdbx
- .key
- .keynote
- .kml
- .kmz
- .knt
- .kpr
- .ld
- .ldif
- .lib
- .lic
- .lis
- .lpd
- .ls
- .ltx
- .lwp
- .lyc
- .lyt
- .lzma
- .m3u
- .m4a
- .m4v
- .max
- .mb
- .mbox
- .mcs
- .md2
- .mdb
- .mdbackup
- .mddata
- .mde
- .mdf
- .mdi
- .mdinfo
- .mds
- .mdw
- .mdx
- .mid
- .mkv
- .mmf
- .mnu
- .mobileprovision
- .mon
- .mov
- .mp3
- .mp4
- .mpa
- .mpb
- .mpeg
- .mpg
- .mpj
- .mpp
- .mq4
- .mqh
- .ms
- .msf
- .msg
- .mso
- .mta
- .mts
- .mus
- .myd
- .myf
- .myi
- .nam
- .nap
- .nba
- .nbf
- .nbi
- .nbu
- .nbz
- .nco
- .nes
- .net
- .new
- .nfo
- .nng
- .note
- .nr
- .nrg
- .nri
- .nru
- .ns
- .nzb
- .oa4
- .oac
- .odb
- .odc
- .ods
- .odt
- .ogg
- .old
- .opt
- .or4
- .org
- .ott
- .ova
- .ovf
- .ovpn
- .oxps
- .p12
- .p2i
- .p65
- .p7
- .pages
- .pbi
- .pct
- .pdfx
- .pehape
- .pem
- .pfq
- .pfx
- .pgp
- .php
- .php3
- .php4
- .php5
- .phps
- .phpx
- .phpxx
- .phtm
- .phtml
- .pid
- .pins
- .pl
- .plist
- .pmd
- .pmk
- .pmx
- .pnf
- .png
- .ppdf
- .pps
- .ppsm
- .ppsx
- .ppt
- .pptm
- .pptx
- .pref
- .prn
- .prt
- .ps
- .psd
- .pspimage
- .pst
- .pub
- .pvm
- .pwd
- .px
- .qcn
- .qcow
- .qcow2
- .qt
- .qxp
- .ra
- .rar
- .raw
- .rdp
- .rm
- .rpb
- .rtf
- .s
- .sam
- .sav
- .sbf
- .scv
- .sdc
- .sdi
- .sds
- .sdx
- .sdy
- .secure
- .seed
- .sel
- .seq
- .set
- .sfv
- .shs
- .skb
- .skd
- .skp
- .slf
- .sln
- .sme
- .smk
- .smm
- .sms
- .spb
- .spi
- .spro
- .sql
- .srp
- .srt
- .srv
- .ssc
- .ssi
- .sss
- .stf
- .stg
- .stl
- .stw
- .sub
- .suo
- .svg
- .swf
- .sxw
- .symbolmap
- .syncdb
- .tag
- .tar
- .tav
- .tb3
- .tc
- .tdl
- .tex
- .tga
- .thm
- .tib
- .tif
- .tiff
- .tlx
- .toast
- .torrent
- .tpl
- .ts
- .tv
- .tvc
- .txt
- .ucd
- .user
- .val
- .vbk
- .vcard
- .vcd
- .vcf
- .vdi
- .vfs4
- .vhd
- .vhdx
- .vir
- .vmc
- .vmdk
- .vob
- .vsd
- .vsv
- .wab
- .wallet
- .war
- .wav
- .wbk
- .wbverify
- .wc
- .webarchive
- .webm
- .whtt
- .wim
- .win
- .wlt
- .wma
- .wmb
- .wmv
- .workflow
- .wpb
- .wps
- .wsb
- .xdw
- .xed
- .xg0
- .xg1
- .xg2
- .xlg
- .xlk
- .xlr
- .xls
- .xlsb
- .xlsm
- .xlsx
- .xlt
- .xlw
- .xsn
- .xz
- .yg0
- .yg1
- .yg2
- .yuv
- .z
- .zip
We have observed some variants do not encrypt the Bitcon wallet file wallet.dat.
Some variants of this threat delete shadow files to prevent users from restoring files from a local back up.
This threat uses TOR to communicate with its backend server.
Example icon and notifications:
Analysis by Carmen Liang Symptoms The following can indicate that you have this threat on your PC:
- You can't open your files
- You see a message like the following:
Last update 06 November 2015