RANSOM_CRYPFIRAGO.A
Trojan:Win32/Dynamer!ac (Microsoft), a variant of Win32/Injector.CPGP (ESET)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
169,746 bytes
EXE
No
30 Dec 2015
Encrypts files, Displays message/message boxes
Arrival Details
This Trojan 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 Trojan drops the following files:
- {folders containing encrypted files}\FILESAREGONE.TXT - ransom note
- {folders containing encrypted files}\IHAVEYOURSECRET.KEY
Other System Modifications
This Trojan modifies the following file(s):
- It encrypts files and appends the extension .fuck
Other Details
This Trojan encrypts files with the following extensions:
- AccLR
- cab
- dng
- doc
- docm
- docx
- dot
- dotm
- dotx
- drf
- drw
- dtd
- dwg
- dxb
- dxf
- dxg
- eml
- epk
- eps
- erbsql
- erf
- esm
- exf
- fdb
- ff
- ffd
- fff
- fh
- fhd
- fla
- flac
- flv
- forge
- fos
- fpk
- fpx
- fsh
- fxg
- gdb
- gho
- gray
- grey
- gry
- h
- hbk
- hkdb
- hkx
- hplg
- hpp
- hvpl
- ibank
- ibd
- ibz
- icxs
- idx
- iif
- iiq
- incpas
- indd
- itdb
- itl
- itm
- iso
- iwd
- iwi
- java
- jpe
- jpeg
- jpg
- js
- kc2
- kdb
- kdbx
- kdc
- key
- kf
- kpdx
- layout
- lbf
- litemod
- lrf
- ltx
- lua
- lvl
- m
- m2
- m3u
- m4a
- m4v
- map
- max
- mcmeta
- mdb
- mdbackup
- mdc
- mddata
- mdf
- mef
- menu
- mfw
- mlx
- mmw
- moneywell
- mos
- mov
- mp3
- mp4
- mpg
- mpqge
- mrw
- mrwref
- msg
- myd
- ncf
- nd
- ndd
- nef
- nk2
- nop
- nrw
- ns2
- ns3
- ns4
- nsd
- nsf
- nsg
- nsh
- ntl
- nwb
- nx1
- nx2
- nyf
- oab
- obj
- odb
- odc
- odf
- odg
- odm
- odp
- ods
- odt
- orf
- ost
- otg
- oth
- otp
- ots
- ott
- p12
- p7b
- p7c
- pab
- pak
- pas
- pat
- pcd
- pct
- pdb
- pdd
- pef
- pem
- pfx
- php
- pkpass
- pl
- png
- pot
- potm
- potx
- ppam
- pps
- ppsm
- ppsx
- ppt
- pptm
- pptx
- prf
- ps
- psafe3
- psd
- psk
- pst
- ptx
- py
- qba
- qbb
- qbm
- qbr
- qbw
- qbx
- qby
- qdf
- qic
- r3d
- ra2
- raf
- rar
- raw
- rb
- rdb
- re4
- rgss3a
- rim
- rm
- rofl
- rtf
- rw2
- rwl
- rwz
- s3db
- sas7bdat
- sav
- sb
- sd0
- sd1
- sda
- sdf
- sid
- sidd
- sidn
- sie
- sis
- sldm
- sldx
- slm
- snx
- sql
- sqlite
- sqlite3
- sqlitedb
- sr2
- srf
- srt
- srw
- st4
- st5
- st6
- st7
- st8
- stc
- std
- sti
- stw
- stx
- sum
- svg
- swf
- sxc
- sxd
- sxg
- sxi
- sxm
- sxw
- syncdb
- t12
- t13
- tax
- tex
- tga
- thm
- tlg
- tor
- txt
- upk
- vcf
- vdf
- vfs0
- vob
- vpk
- vpp_pc
- vtf
- w3x
- wallet
- wav
- wb2
- wma
- wmo
- wmv
- wotreplay
- wpd
- wps
- x3f
- xf
- xla
- xlam
- xlk
- xll
- xlm
- xlr
- xls
- xlsb
- xlsm
- xlsx
- xlt
- xltm
- xltx
- xlw
- xml
- xxx
- ycbcra
- yuv
- zip
- ztmp
- arj
- tib
- wim
- aep
- tar
- jar
- bmp
- swm
- vault
- xtbl
- ctb
- 113
- 73b
- a3d
- abf
- abk
- prproj
- torrent
- bck
- as4
- asvx
- ate
- old
- unity3d
- gif
- html
- htm
- shtm
- shtml
- con
- bin
- pass
- lng
- ttarch2
- mpq
- cab
- NetCDF
- DayZProfile
- 001
- DTAUS
- DICOM
- CCD
- mcgame
- OFX
- QBO
- QFX
- QIF
- emlx
- EDI
- DTA
- data
- epub
- sc2save
- spf
- sv$
- SDXF
- XMI
- dwfx
- dgb
- dc3
- wbb
- win
- vbox-prev
- trn
- bcm
- bb
- bakx
- bak3
- bak2
- ati
- keystore
- asd
- MPEG-2
- pub
- WIF
- SUB
- IMG
- MDS
- GPX
- IFF
- CLEAR
- MPEG-4
- DivX
- MPEG-1
- mpg
- vob
- fb2
- pdb
- mobi
- azw
- azw4
- qt
- gzip
- ldf
- sldprt
- cpt
- m2v
- mkv
- mpeg
- sbs
- dat
- dt
- nbd
- sldasm
- rx2
- pz3
- tbl
- tis
- sna
- sn1
- gbk
- iv2i
- m3d
- fbf
- fbk
- fbw
- fbx
- cf
- bac
- xlsk
- pwm
- wab
- 1cd
- wdb
- bz2
- gz
- b1
- xpi
- bzip2
- tbz2
- tbz
- txz
- chm
- chi
- chq
- chw
- hxs
- hxi
- hxr
- hxq
- hxw
- lit
- cpio
- deb
- tgz
- tpz
- hfs
- lzh
- lha
- lzma
- rpm
- xar
- z
- taz
- xz
- dmg
- cb7
- cbr
- cbt
- cbz
- wbcat
- mts
- pgp
- gpg
- qvw
- sln
- suo
- lic
- rpt
- gros
- model
- ark
NOTES:
This ransomware displays the following window containing the ransom message:
The dropped ransom note contains the same ransom message:
SOLUTION
9.800
12.242.05
30 Dec 2015
12.243.00
31 Dec 2015
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
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 3
Identify and terminate files detected as RANSOM_CRYPFIRAGO.A
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Search and delete this file
- FILESAREGONE.TXT
- HAVEYOURSECRET.KEY
Step 5
Scan your computer with your Trend Micro product to delete files detected as RANSOM_CRYPFIRAGO.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 6
Restore encrypted files from backup.
Did this description help? Tell us how we did.