Trojan.Linux.HMAN.WGL

September 17, 2019
 Analysis by: Wilbert Luy
 ALIASES:

HEUR:Backdoor.Linux.Mirai.ad (Kaspersky), DDoS:Linux/Gafgyt.YA!MTB (Microsoft)

 PLATFORM:

Linux

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

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.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

Payload:

Connects to URLs/IPs, Downloads files, Compromises system security

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.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • {BLOCKED}.{BLOCKED}.158.42
  • {BLOCKED}.{BLOCKED}.39.198
  • {BLOCKED}.{BLOCKED}.61.164:80
  • http://{BLOCKED}.{BLOCKED}.237.177/bins/mips.handymanny

It takes advantage of the following software vulnerabilities to download possibly malicious files:

Other Details

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

  • {BLOCKED}.{BLOCKED}.82.89

It does the following:

  • It terminates processes not under root or itself.
  • It does the following commands in bricker function:
    • Deletes all files
    • Sets the cylinders, heads, and sectors of removable drives to 1
    • Removes connection traces
    • Removes IP table content
    • Denies read, write, and execution of /root/ and /tmp/
    • Stops and reboots the machine
  • It replaces the following with /dev/urandom in bricker function:
    • /dev/mtdblock
    • /dev/mtblock(0-7)
    • /dev/sda
    • /dev/sda(1-4)
    • /dev/ram0
    • /dev/mmc0
    • /dev/sdb
    • /dev/mtd(0-3)
    • /dev/hda1
    • /dev/hdb1
    • /dev/root
    • /dev/ram9
    • /dev/mmcblk0
    • /dev/mmcblk0p1
  • It uses the following credentials to brute-force a telnet connection:
    • "default","default
    • "root","taZz@23495859"
    • "root","linuxshell
    • "user","user
    • "admin","admin
    • "daemon","daemon
    • "guest","12345
    • "support","support
    • "admin","54321
    • "root","default
    • "root","vizxv
    • "root","zlxx.7"
    • "root","Zte521"
    • "root","anko"
    • "root","zsun1188"
    • "root","xc3511"
    • "root","xmhdipc"
    • "root","xm"
    • "guest","admin"
    • "default","0"
    • "vstarcam2015","20150602"
    • "admin","12345678"
    • "guest","123456"
    • "root","12345"
    • "root","jvbzd"
    • "root","hi3518"
    • "root","hunt5759"
    • "root","20080826"
    • "service","service"
    • "root","svgodie"
    • "admin","zhone"
    • "cisco","cisco"
    • "root","2011vsta"
    • "root","klv1234"
    • "root","klv123"
    • "root","huigu309"
    • "telnetadmin","telnetadmin"
    • "root","3ep5w2u"
    • "root","1q2w3e4r5"
    • "e8telnet","e8telnet"
    • "e8ehome","e8ehome"
    • "admintelecom","admintelecom"
    • "root","root"
    • "root","hadoop"
    • "telecomadmin","admintelecom"
    • "default","OxhlwSG8"
    • "mg3500","merlin"
    • "root","anni2013"
    • "root","GM8182"
    • "root","uClinux"
    • "root","5up"
    • "root","jvc"
    • "admin","epicrouter"
    • "root","1001chin"
    • "admin","aquario"
    • "admin","gpon"
    • "supervisor","zyad1234"
    • "root","7ujMko0vizxv"
    • "root","7ujMko0admin"
    • "admin","7ujMko0admin"
    • "root","oelinux123"
    • "root","changeme"
    • "root","LSiuY7pOmZG2s"
    • "root","vertex25ektks123"
    • "root","tsgoingon"
    • "root","solokey"
    • "root","666666"
    • "root","888888"
    • "root","88888888"
    • "root","grouter"
    • "root","telnet"
    • "root","tl789"
    • "root","telecomadmin"
    • "root","twe8ehome"
    • "root","h3c"
    • "root","nmgx_wapia"
    • "root","private"
    • "root","abc123"
    • "root","ROOT500"
    • "root","ahetzip8"
    • "root","ascend"
    • "root","blender"
    • "root","cat1029"
    • "root","iDirect"
    • "root","inflection"
    • "root","ipcam_rt5350"
    • "root","swsbzkgn"
    • "root","juantech"
    • "root","t0talc0ntr0l4!"
    • "root","zhongxing"
    • "root","dreambox"
    • "root","ikwb"
    • "root","realtek"
    • "root","00000000"
    • "root","12341234"
    • "root","antslq"
    • "adm","0"
    • "root","admin"
    • "ftp","ftp"
    • "guest","guest"
    • "root","1111"
    • "root","1234"
    • "root","123456"
    • "root","54321"
    • "root","hg2x0"
    • "root","pass"
    • "root","password"
    • "root","svgodie"
    • "root","zlxx."
    • "root","system"
    • "root","user"
    • "root","win1dows"
    • "root","0"
    • "admin","password"
    • "admin","0"
    • "admin","admin1234"
    • "admin","smcadmin"
    • "admin","1111"
    • "Administrator","admin"
    • "supervisor","supervisor"
    • "admin1","password"
    • "administrator","1234"
    • "666666","666666"
    • "888888","888888"
    • "ubnt","ubnt"
    • "admin","1111111"
    • "admin","1234"
    • "admin","12345"
    • "admin","54321"
    • "admin","123456"
    • "admin","pass"
    • "admin","meinsm"
    • "tech","tech"
    • "mother","fucker"
    • "root","ivdev"
    • "root","annie2012"
    • "root","annie2013"
    • "root","annie2014"
    • "root","annie2015"
    • "root","annie2016"
    • "root","zlxx"
    • "root","calvin"
    • "root","fidel123"
    • "default","tlJwpbo6"
    • "default","S2fGqNFs"
    • "admin","ZmqVfoSIP"
    • "admin","motorola"
    • "admin","cisco"
    • "administrator","123"
    • "root","123"
    • "operator","operator"
    • "root","iwkb"
    • "root","hg2x0"
    • "admin","diamond"
    • "support","1234"
    • "admin","JVC"
    • "bin","0"
    • "root","tech"
    • "administrator","password"
    • "1234","1234"
    • "admin","ubnt"
    • "root","fucker"
    • "root","1001chin"
    • "admin","ironport"
    • "service","ipdongle"
    • "default","lJwpbo6"
    • "smcadmin","0"
    • "admin","ho4uku6at"
    • "admin","dvr258022"
    • "admin","true"
    • "admin","adminadmin"
    • "admin","changeme"
    • "user","changeme"
    • "admin","QwestM0dem"
    • "root","LZE326business"
    • "admin","microbusiness"
    • "admin","smallbusiness"
    • "www2","9311"
    • "www","9311"
    • "admin","smallbusiness"
    • "admin","conexant"
    • "admin","2601hx"
    • "admin","extendnet"
    • "admin","zhongxing"
    • "admin","nCwMnJVGag"
    • "root","D13hh["
    • "admin","synnet"
    • "admin","ADMIN"
    • "admin","radius"
    • "shell","sh"
    • "admin","comcomcom"
    • "admin","Uq-4GIt3M"
    • "admin","xad#12"
    • "root","1"
    • "root","1@"
    • "temp","temp"
    • "admin","0"
    • "admin","1988"
    • "admin","0"
    • "root","taZz@23"
    • "root","root123"
    • "root","qwerty"
    • "admin","Admin"
    • "Admin","admin"
    • "patrol","patrol"
    • "installer","installer"
    • "root","fivranne"
    • "webadmin","webadmin"
    • "netrangr","attack"
    • "cmaker","cmaker"
    • "bbsd-client","changeme2database"
    • "bbsd-client","NULL"
    • "root","attack"
    • "offshore","offshore"
    • "hsa","hsasdb"
    • "wlse","wlsedb"
    • "wlseuser","wlsepassword"
    • "citel","password"
    • "admin","system"
    • "default","system"
    • "epicrouter","epicrouter"
    • "epicrouter","admin"
    • "minecraft","minecraft"
    • "davox","davox"
    • "userario","userario"
    • "admin","my_DEMARC"
    • "server","server"
    • "MDaemon","MServer"
    • "vps","vps"
    • "dedi","dedi"
    • "dedicated","dedicated"
    • "PBX","PBX"
    • "NETWORK","NETWORK"
    • "none","BRIDGE"
    • "admin","michaelangelo"
    • "Alphanetworks","wrgg15_di52"
    • "Alphanetworks","firmware"
    • "draytek","1234Admin"
    • "edimax","software01"
    • "admin","su@psir"
    • "login","admin"
    • "login","password"
    • "none","4getme2"
    • "tiger","tiger123"
    • "MD110","help"
    • "anonymous","Exabyte"
    • "none","Posterie"
    • "manage","!manage"
    • "netadmin","nimdaten"
    • "admin","isee"
    • "Factory","56789Admin"
    • "storwatch","specialist"
    • "vt100","public"
    • "superadmin","secret"
    • "hsc","abc123"
    • "admin","P@55w0rd!"
    • "Administrator","pilou"
    • "susAdmin","Administrator"
    • "superuser","superuser"
    • "superuser","123456special"
    • "superuser","123456"
    • "none","admin00"
    • "root","orion99"
    • "user","tivonpw"
    • "admin","Ascend"
    • "super","super"
    • "readwrite","lucenttech1"
    • "admin","AitbISP4eCiG"
    • "service","smile"
    • "cablecom","router"
    • "sysadm","sysadm"
    • "SYSADM","sysadm"
    • "router","router"
    • "vcr","NetVCR"
    • "none","xdfk9874t3"
    • "disttech","4tas"
    • "maint","maint"
    • "m1122","m1122"
    • "maint","ntacdmax"
    • "supervisor","PlsChgMe"
    • "write","private"
    • "admin","pfsense"
    • "admin","superuser"
    • "engmode","hawk201"
    • "support","h179350"
    • "lp","lp"
    • "radware","radware"
    • "1","1"
    • "12","12"
    • "123","123"
    • "1234","1234"
    • "12345","12345"
    • "123456","123456"
    • "124567","124567"
    • "1245678","1245678"
    • "12456789","12456789"
    • "1234567890","1234567890"
    • "no","no"
    • "none","none"
    • "wradmin","trancell"
    • "none","Col2ogro2"
    • "sysadmin","password"
    • "teacher","password"
    • "integrator","integrator"
    • "integrator","p1nacate"
    • "operator","col1ma"
    • "administrator","d1scovery"
    • "admin","d1scovery"
    • "root","1234User"
    • "admin","w2402"
    • "admin","Sharp"
    • "poll","tech"
    • "eng","engineer"
    • "Administrator","smcadmin"
    • "smc","smcadmin"
    • "admin","smcadmin"
    • "admin","barricade"
    • "cusadmin","highspeed"
    • "mso","w0rkplac3rul3s"
    • "stratacom","stratauser"
    • "Symbol","Admin"
    • "target","password"
    • "sweex","mysweex"
    • "admin","symbol"
    • "operator","mercury"
    • "guest","truetime"
    • "admin","12345Admin"
    • "super.super","master"
    • "xbox","xbox"
    • "tellabs","tellabs#1"
    • "root","admin_1"
    • "superman","talent"
    • "Admin","123456Admin"
    • "admin","imss7.0"
    • "admin","detmond"
    • "admin","1111Admin"
    • "admin","22222Admin"
    • "admin","x-admin"
    • "11111","x-admin"
    • "diag","switch"
    • "admin","switch"
    • "admin","zoomads"
    • "ADSL","expert03"
    • "root","alpine"
    • "root","maxided"
    • "pi","raspberry"
    • "vagrant","vagrant"
    • "telnet","telnet"
    • "guest","xc3511"
    • "111111","111111"
    • "admin","bayandsl"
    • "adminpldt","12345676890"
    • "root","1234567890"
    • "root","comcom"
    • "root","zte9x15"
    • "ZXDSL","ZXDSL"
    • "D-Link","D-Link"
    • "cnc","cnc"
    • "dlink","dlink"
    • "DLink","DLink"
    • "ftpuser","asteriskftp"
    • "openlgtv","openlgtv"
    • "root","696969"
    • "root","pa55w0rd"
    • "root","123123",
    • "root","b120root"
    • "root","PASSWORD",
    • "netgearnetgear","ibmpassword"
    • "vyattavyatta","Adminatc456"
    • "microsmicros","comcastcomcast"
    • "pos","pos"
    • "www","www"
    • "2800","2800"
    • "UBNT","UBNT"
    • "aDMIN","1111"
    • "admin","utstar"
    • "Administratorpublic","Administratorbuh"
    • "Administratoradmin","adminadmin00"
    • "adminip20","adminip3000"
    • "adminip400","admintsunami"
    • "adminpublic","admin2601hx"
    • "adminsynnet","quserquser"
    • "ManagerManager","dlinkdefault"
    • "loginuser","loginpass"
    • "aDMIN","1111"
    • "aDMIN","123456"
    • "admin","utstar"
    • "Administrator","public"
    • "Administrator","buh"
    • "Administrator","admin"
    • "admin","admin00"
    • "admin","ip20"
    • "admin","ip3000"
    • "admin","ip400"
    • "admin","tsunami"
    • "admin","public"
    • "admin","2601hx"
    • "admin","synnet"
    • "quser","quser"
    • "Manager","Manager"
    • "dlink","default"
    • "login","user"
    • "login","pass"
    • "netopia","netopia"
    • "sysadm","sysadm"
    • "sysadm","anicust"
    • "debug","d.e.b.u.g"
    • "debug","synnet"
    • "echo","echo"
    • "demo","demo"
    • "arris","admin"
    • "Linksys","admin"
    • "client","client"
    • "cisco","CISCO"
    • "7654321","7654321"
    • "adsl","adsl1234"
    • "root","toor"
    • "dm","telnet"
    • "adminttd","adminttd"
    • "mountsys","mountsys"
    • "memotec","supervisor"
    • "museadmin","Muse!Admin"
    • "adminpldt","1234567890"
    • "bbsd-client","changeme2"

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.364.05

FIRST VSAPI PATTERN DATE:

13 Sep 2019

VSAPI OPR PATTERN File:

15.365.00

VSAPI OPR PATTERN Date:

14 Sep 2019

Scan your computer with your Trend Micro product to delete files detected as Trojan.Linux.HMAN.WGL. 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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