Win32/Filecoder [Threat Name] go to Threat
Win32/Filecoder.NEA [Threat Variant Name]
| Category | trojan |
| Size | 347296 B |
| Aliases | Trojan-Ransom.Win32.Crypren.vnf (Kaspersky) |
| Trojan:Win32/Skeeyah.A!rfn (Microsoft) | |
| Trojan.MulDrop6.716 (Dr.Web) |
Short description
Win32/Filecoder.NEA is a trojan that encrypts files on local drives. To decrypt files the user is requested to comply with given conditions in exchange for a password/instructions. The file is run-time compressed using RAR SFX .
Installation
When executed, the trojan creates the following files:
- %userprofile%\7.exe (107520 B, Win32/Filecoder.NEA)
- %userprofile%\7.png (30750 B)
The trojan executes the following files:
- %userprofile%\7.exe
Payload information
Win32/Filecoder.NEA is a trojan that encrypts files on local drives.
The trojan searches local drives for files with the following file extensions:
- .3ds
- .3fr
- .3pr
- .7z
- .ab4
- .accdb
- .ai
- .ait
- .al
- .apj
- .arw
- .asp
- .awg
- .backup
- .backupdb
- .bak
- .bdb
- .bgt
- .bik
- .bkp
- .blend
- .bpw
- .c
- .cdf
- .cdr
- .cdr3
- .cdr4
- .cdr5
- .cdr6
- .cdrw
- .cdx
- .ce1
- .ce2
- .cer
- .cfp
- .cgm
- .cib
- .cls
- .cmt
- .cpi
- .crt
- .csh
- .css
- .csv
- .dac
- .db
- .db3
- .dbf
- .db-journal
- .dc2
- .dcr
- .dcs
- .ddd
- .ddoc
- .ddrw
- .der
- .design
- .dgc
- .djvu
- .dng
- .doc
- .docm
- .docx
- .dot
- .dotm
- .dotx
- .drf
- .drw
- .dwg
- .dxb
- .erbsql
- .erf
- .exf
- .fdb
- .ffd
- .fff
- .fh
- .fhd
- .fpx
- .fxg
- .gray
- .grey
- .gry
- .h
- .hbk
- .hpp
- .ibank
- .ibz
- .idb
- .idx
- .iiq
- .incpas
- .jpeg
- .JPEG
- .jpg
- .JPG
- .js
- .kc2
- .kdbx
- .kdc
- .kpdx
- .lua
- .mdb
- .mdc
- .mef
- .mfw
- .mmw
- .moneywell
- .mos
- .mp3
- .mpg
- .mrw
- .myd
- .ndd
- .nef
- .nop
- .nrw
- .ns2
- .ns3
- .ns4
- .nsd
- .nsf
- .nsg
- .nsh
- .nx1
- .nx2
- .nyf
- .odb
- .odf
- .odg
- .odm
- .odp
- .ods
- .odt
- .orf
- .otg
- .oth
- .otp
- .ots
- .ott
- .p12
- .p7b
- .p7c
- .pat
- .pcd
- .pef
- .pem
- .pfx
- .php
- .pl
- .pot
- .potm
- .potx
- .ppam
- .pps
- .ppsm
- .ppsx
- .ppt
- .pptm
- .pptx
- .ps
- .psafe3
- .psd
- .ptx
- .ra2
- .raf
- .rar
- .raw
- .rdb
- .rtf
- .rw2
- .rwl
- .rwz
- .s3db
- .sas7bdat
- .sav
- .sda
- .sdf
- .sdo
- .sldm
- .sldx
- .sqlite
- .sqlite3
- .sqlitedb
- .sr2
- .srf
- .srw
- .st4
- .st5
- .st6
- .st7
- .st8
- .stc
- .std
- .sti
- .stw
- .stx
- .sxc
- .sxd
- .sxg
- .sxi
- .sxm
- .sxw
- .txt
- .wb2
- .x3f
- .xla
- .xlam
- .xll
- .xlm
- .xls
- .xlsb
- .xlsm
- .xlsx
- .xlt
- .xltm
- .xltx
- .xlw
- .ycbcra
- .zip
The trojan encrypts the file content.
An additional ".filesdecrypt@india.com" extension is appended.
The RSA, AES encryption algorithm is used.
The trojan creates the following file:
- %currentfolder%\help-decrypt-file.enc
To decrypt files the user is requested to comply with given conditions in exchange for a password/instructions.
Other information
The trojan displays the following dialog boxes:
