Ransom.Linux.ECHORAIX.A

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 connects to certain websites to send and receive information.

It encrypts files with specific file extensions. It drops files as ransom note.

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.

Process Termination

This Ransomware terminates processes or services that contain any of the following strings if found running in the affected system's memory:

• apache2
• httpd
• nginx
• mysqld
• mysql
• php-fpm
• php5-fpm
• postgresql

Other Details

This Ransomware connects to the following website to send and receive information:

• http://{BLOCKED}.{BLOCKED}.206.61/d.php?s=started
• http://{BLOCKED}.{BLOCKED}.206.61/d.php/s=done
• http://{BLOCKED}.{BLOCKED}.206.61:65000
• http://{BLOCKED}5hh.onion/api/GetAvailKeysByCampId/{Number}
• http://{BLOCKED}l5hh.onion/order/1LWqmP4oTjWS3ShfHWm1UjnvaLxfMr2kjm
• http://{BLOCKED}5hh.onion/static/

Ransomware Routine

This Ransomware encrypts files with the following extensions:

• .dat
• .db0
• .dba
• .dbf
• .dbm
• .dbx
• .dcr
• .der
• .dll
• .dml
• .dmp
• .dng
• .doc
• .dot
• .dwg
• .dwk
• .dwt
• .dxf
• .dxg
• .ece
• .eml
• .epk
• .eps
• .erf
• .esm
• .ewp
• .far
• .fdb
• .fit
• .flv
• .fmp
• .fos
• .fpk
• .fsh
• .fwp
• .gdb
• .gho
• .gif
• .gne
• .gpg
• .gsp
• .gxk
• .hdm
• .hkx
• .htc
• .htm
• .htx
• .hxs
• .idc
• .idx
• .ifx
• .iqy
• .iso
• .itl
• .itm
• .iwd
• .iwi
• .jcz
• .jpe
• .jpg
• .jsp
• .jss
• .jst
• .jvs
• .jws
• .kdb
• .kdc
• .key
• .kit
• .ksd
• .lbc
• .lbf
• .lrf
• .ltx
• .lvl
• .lzh
• .m3u
• .m4a
• .map
• .max
• .mdb
• .mdf
• .mef
• .mht
• .mjs
• .mlx
• .mov
• .moz
• .mp3
• .mpd
• .mpp
• .mvc
• .mvr
• .myo
• .nba
• .nbf
• .ncf
• .ngc
• .nod
• .nrw
• .nsf
• .ntl
• .nv2
• .nxg
• .nzb
• .oam
• .odb
• .odc
• .odm
• .odp
• .ods
• .odt
• .ofx
• .olp
• .orf
• .oth
• .p12
• .p7b
• .p7c
• .pac
• .pak
• .pdb
• .pdd
• .pdf
• .pef
• .pem
• .pfx
• .pgp
• .php
• .png
• .pot
• .ppj
• .pps
• .ppt
• .prf
• .pro
• .psd
• .psk
• .psp
• .pst
• .psw
• .ptw
• .ptx
• .pub
• .qba
• .qbb
• .qbo
• .qbw
• .qbx
• .qdf
• .qfx

It avoids encrypting files with the following strings in their file path:

• /proc
• /boot/
• /sys/
• /run/
• /dev/
• /etc/
• /home/httpd
• /mnt/ext/opt
• .system/thumbnail
• .system/opt
• .config
• .qpkg

It appends the following extension to the file name of the encrypted files:

• .encrypt

It drops the following file(s) as ransom note:

• README_FOR_DECRYPT.txt

It leaves text files that serve as ransom notes containing the following text:

• All your data has been locked(crypted).
  ​How to unclock(decrypt) instruction located in this TOR website: http://{BLOCKED}5hh.onion/order/{Bitcoin address}
  Use TOR browser for access .onion websites.
  https://{BLOCKED}kgo.com/html?q=tor+browser+how+to
  
  Do NOT remove this file and NOT remove last line in this file!
  {base64 encoded encrypted data}