Ransom.Linux.XBASH.AC

September 25, 2018
 Analysis by: Robert Nicole Malagad
 ALIASES:

Linux/Xbash-A (Sophos_Lite), Linux.Trojan (Norton)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Ransomware may be downloaded by other malware/grayware/spyware from remote sites.

  TECHNICAL DETAILS

File Size:

9,568,976 bytes

File Type:

ELF

Memory Resident:

No

Initial Samples Received Date:

19 Sep 2018

Payload:

Connects to URLs/IPs

Arrival Details

This Ransomware may be downloaded by other malware/grayware/spyware from remote sites.

Stolen Information

This Ransomware sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED}ift.censys.xyz/cidir

Other Details

This Ransomware does the following:

  • It uses the following list of passwords to bruteforce database servers:
    • test
    • neagrle
    • 123456
    • admin
    • root
    • password
    • 123123
    • 123
    • 1
    • {user}
    • {user}{user}
    • {user}1
    • {user}123
    • {user}2016
    • {user}2015
    • {user}!
    • P@ssw0rd!!
    • qwa123
    • 12345678
    • test
    • 123qwe!@#
    • 123456789
    • 123321
    • 1314520
    • 666666
    • woaini
    • fuckyou
    • 000000
    • 1234567890
    • 8888888
    • qwerty
    • 1qaz2wsx
    • abc123
    • abc123456
    • 1q2w3e4r
    • 123qwe
    • 159357
    • p@ssw0rd
    • p@55w0rd
    • password!
    • p@ssw0rd!
    • password1
    • r00t
    • tomcat
    • apache
    • system'
    • 121212
    • jason
    • admin123
    • goodluck123
    • peaches
    • asdfghjkl
    • wang123456
    • falcon
    • www123
    • 1qazxsw2
    • 112211
    • fuckyou
    • test
    • silver
    • 123456789
    • 234567
    • 1122334455
    • xxxxxx
    • 123321
    • 7788521
    • 123456qaz
    • hunter
    • qwe123
    • 123
    • asdf123
    • password
    • 1q2w3e4r
    • nihao123
    • aaaa1111
    • 123123
    • 147258369
    • a123
    • 123qwe
    • 1234abcd
    • spider
    • qqaazz
    • qwertyuiop
    • 1234qwer
    • 123abc
    • qwer1234
    • mustang
    • 123456
    • 123456a
    • ww123456
    • 1234
    • 123456.com
    • football
    • jessica
    • power
    • q1w2e3r4t5
    • aaa123
    • passw0rd
    • 741852
    • 666666
    • 123465
    • justin
    • !@#$%^&*()
    • 12345
    • 222222
    • qazwsx123
    • 999999
    • abc123
    • tomcat
    • dongdong
    • 654321
    • 111111a
    • q1w2e3
    • dragon
    • 1234560
    • 1234567
    • asd123456
    • secret
    • abc123456
    • master
    • qq123456
    • 1q2w3e
    • playboy
    • P@ssw0rd
    • 123654
    • 88888888
    • 12345678
    • orange
    • rabbit
    • jonathan
    • 000000
    • qwer
    • admin
    • asdfasdf
    • 1234567890
    • 709394
    • 12qwaszx
    • abcd1234
    • pass
    • fuck
    • abc12345
    • qweasdzxc
    • abcdef
    • superman
    • rainbow
    • 11111111111
    • 1
    • 321
    • 888888
    • 1qaz2wsx
    • test
    • 112233
    • qazwsx
    • welcome
    • 4815162342
    • tiger
    • wangyang
    • q1w2e3r4
    • 111111
    • a123456
    • hello
    • 123456654321
  • It uses the following usernames for specific database server:
    • mysql:[root]
    • postgresql:[postgres, admin]
    • mongodb:[admin]
    • redis:[null]
  • It uses regular expression to scan tcp and udp ports in the database servers
  • It uses the following ports for the specific database servers:
    • HTTP: 80, 8080, 8888, 8000, 8001, 8088
    • VNC: 5900, 5901, 5902, 5903
    • MySQL: 3306
    • Memcached: 11211
    • MySQL/MariaDB: 3309, 3308,3360 3306, 3307, 9806, 1433
    • FTP: 21
    • Telnet: 23, 2323
    • PostgreSQL: 5432
    • Redis: 6379, 2379
    • ElasticSearch: 9200
    • MongoDB: 27017
    • RDP: 3389
    • UPnP/SSDP: 1900
    • NTP: 123
    • DNS: 53
    • SNMP: 161
    • LDAP: 389
    • Rexec: 512
    • Rlogin: 513
    • Rsh: 514
    • Rsync: 873
    • Oracle database: 1521
    • CouchDB: 5984
  • It uses the following for C2 Communication based on HTTP Protocol:
    • Fetching for a list of IP addresses or domains for scanning a range of IP
    • Fetching for a list of passwords
    • Reports the scan results
  • It fetches internet resources using
    • user-agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.2 Safari/537.36
    • url:http://{BLOCKED}ift.censys.xyz/cidir
  • This ransomware will do the following commands on the database it has bypassed:
    • DROP DATABASE %s← (This command will delete the database)
    • CREATE DATABASE %s;' % 'PLEASE_READ_ME_XYZ ← (This command will create a blank database)
    • CREATE TABLE WARNING (id INT NOT NULL, PRIMARY KEY(id), warning TEXT, Bitcoin_Address TEXT,Email TEXT); ← (This command will create a blank table in the current database)
    • INSERT INTO PLEASE_READ_ME_XYZ.WARNING (id, warning, Bitcoin_Address, Email) VALUES(1,'Send 0.02 BTC to this address and contact this email with your ip or db_name of your server to recover your database! Your DB is Backed up to our servers!', '1Kss6v4eSUgP4WrYtfYGZGDoRsf74M7CMr', 'backupsql@protonmail.com'); ← (This command will insert the data in the table)

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.524.06

FIRST VSAPI PATTERN DATE:

24 Sep 2018

VSAPI OPR PATTERN File:

14.525.00

VSAPI OPR PATTERN Date:

25 Sep 2018

Scan your computer with your Trend Micro product to delete files detected as Ransom.Linux.XBASH.AC. 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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