Analysis by: Earle Maui Earnshaw
ALIASES:

Trojan.Linux.Coinminer(Ikarus)

 PLATFORM:

Linux

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

File Size: 8,862 bytes
File Type: Other
Memory Resident: Yes
Initial Samples Received Date: 19 Dec 2019

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.

Process Termination

This Trojan terminates the following processes if found running in the affected system's memory:

  • /usr/bin/.sshd
  • acpid
  • AnXqV.yam
  • apaceha
  • askdljlqw
  • bashe
  • bashf
  • bashg
  • bashh
  • bashx
  • BI5zj
  • biosetjenkins
  • bonn.sh
  • bonns
  • conn.sh
  • conns
  • cryptonight
  • crypto-pool
  • ddg.2011
  • daemon
  • disk_genius
  • donns
  • Duck.sh
  • gddr
  • Guard.sh
  • i586
  • icb5o
  • ir29xc1
  • irqba2anc1
  • irqba5xnc1
  • irqbalanc1
  • irqbalance
  • irqbnc1
  • JnKihGjn
  • jweri
  • kw.sh
  • kworker34
  • kxjd
  • lipapache
  • loopback
  • lx26
  • mgwsl
  • minerd
  • minergate
  • minexmr
  • mixnerdx
  • mstxmr
  • nanoWatch
  • nopxi
  • NXLAi
  • performedl
  • polkitd
  • pro.sh
  • pythno
  • qW3xT.2
  • sourplum
  • stratum
  • sustes
  • wnTKYg
  • XbashY
  • XJnRj
  • xmrig
  • xmrigDeamon
  • xmrigMiner
  • ysaydh
  • zigw
  • Terminate Process that contains the following strings in its commandline:
    • mine.moneropool.com
    • xmr.crypto-pool.fr:8080
    • xmr.crypto-pool.fr:3333
    • monerohash.com
    • /tmp/a7b104c270
    • xmr.crypto-pool.fr:6666
    • xmr.crypto-pool.fr:7777
    • xmr.crypto-pool.fr:443
    • stratum.f2pool.com:8888
    • xmrpool.eu
    • xmrig
    • xmrigDaemon
    • xmrigMiner
    • /var/tmp/java
    • ddgs
    • qW3xT
    • T00ls.ru
    • /var/tmp/sustes
    • xiaoyao
    • named
    • kernelcfg
    • xiaoxue
    • kernelupgrade
    • kernelorg
    • kernelupdates
    • var, lib, jenkins and "\-c", without httPort and headless
    • ./{numbers} -c
  • Process that uses the following URL and Ports:
    • {BLOCKED}.{BLOCKED}.55.86:443
    • {BLOCKED}.{BLOCKED}.65.238
    • {BLOCKED}.{BLOCKED}.52.87
    • :433
    • :23
    • :443
    • :143
    • :2222
    • :3333389
    • :4444
    • :5555
    • :6666
    • :6665
    • :6667
    • :7777
    • :8444
    • :3347
    • :14444
    • :14433
    • :13531
  • neptune
  • xm64
  • xm32
  • xmrig
  • suppoieup

Other Details

This Trojan does the following:

  • It uses the following Regular Expressions to delete files:
    • /tmp/httpd.conf
    • /tmp/*httpd.conf*
    • /tmp/*index_bak*
    • /tmp/.systemd-private-*
    • /tmp/.xm*
    • /tmp/a7b104c270
    • /tmp/conn
    • /tmp/conns
    • /tmp/httpd.conf
    • /tmp/java*
    • /tmp/kworkerds
    • /bin/kworkerds
    • /bin/config.json
    • /var/tmp/kworkerds
    • /var/tmp/config.json
    • /usr/local/lib/libjdk.so
    • /tmp/qW3xT.2
    • /tmp/ddgs.3013
    • /tmp/ddgs.3012
    • /tmp/wnTKYg
    • /tmp/2t3ik
    • /tmp/root.sh
    • /tmp/pools.txt
    • /tmp/libapache
    • /tmp/config.json
    • /tmp/bashf
    • /tmp/bashg
    • /tmp/libapache
    • /tmp/xm*
    • /var/tmp/java*
  • Kills processes that has high CPU usage
  • Checks for the CPU usage of the following processes if found high will terminate these processes:
    • crond
    • sshd
    • syslogs

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 15.568.03
FIRST VSAPI PATTERN DATE: 19 Dec 2019
VSAPI OPR PATTERN File: 15.569.00
VSAPI OPR PATTERN Date: 20 Dec 2019

Scan your computer with your Trend Micro product to delete files detected as Trojan.SH.MALXMR.UWEJP. 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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