Analizzato da: Bren Matthew Ebriega   
 

Riskware/CoinMiner (FORTINET); HEUR:RiskTool.Linux.BitCoinMiner.n (KASPERSKY)

 Piattaforma:

Linux

 Valutazione del rischio complessivo:
 Potenziale dannoso: :
 Potenziale di distribuzione: :
 Reported Infection:
 Informazioni esposizione: :
Basso
Medio
Alto
Critico

  • Tipo di minaccia informatica:
    Coinminer

  • Distruttivo?:
    No

  • Crittografato?:
    No

  • In the wild::
    Sì

  Panoramica e descrizione

Canale infezione: Descargado de Internet, Eliminado por otro tipo de malware

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Elimina archivos para impedir la ejecución correcta de programas y aplicaciones.

  Dettagli tecnici

Dimensione file: 10,561,096 bytes
Tipo di file: ELF
Residente in memoria: Sì
Data di ricezione campioni iniziali: 30 aprile 2021
Carica distruttiva: Terminates processes, Connects to URLs/IPs

Detalles de entrada

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Instalación

Infiltra los archivos siguientes:

  • /tmp/systemd_conjestion_helper → Detected as Trojan.SH.MALXMR.UWEKW
  • /tmp/systemd_conjestion/systemd_conjestion → detected as Coinminer.Linux.MALXMR.SMDSL64
  • /tmp/systemd_conjestion/config.json → Contains mining parameters to be used.
  • /tmp/{username}/run_script/{random}.sh -> Drops one for every command it runs.
  • /tmp/.d
  • /tmp/ds
  • /tmp/.tmpEcwPCf
  • /tmp/.syslogdmn_lck

Crea las siguientes copias de sí mismo en el sistema afectado:

  • var/tmp/syslogdmn
  • /tmp/syslogdmn
  • /home/{username}/.syslogdmn
  • If ran as a super user:
    • /etc/cron.monthly/log
    • /etc/cron.weekly/crontabtimer
    • /etc/cron.daily/logrotatedmn
    • /etc/cron.hourly/rootd
    • /usr/local/sbin/syslogdmn
    • /usr/local/bin/syslogdmn
    • /sbin/syslogdmn
    • /bin/syslogdmn
    • /usr/sbin/syslogdmn
    • /usr/bin/syslogdmn
    • /root/.syslogdmn

Agrega los procesos siguientes:

  • sh /tmp/{username}/run_script/{random}.sh → One for every command it runs.
  • nohup /tmp/systemd_conjestion/systemd_conjestion >/dev/null 2>&1 &

Crea las carpetas siguientes:

  • /tmp/{username}/
  • /tmp/{username}/run_script/
  • /tmp/systemd_conjestion/

Otras modificaciones del sistema

Elimina los archivos siguientes:

  • /bin/kworkerds
  • /dev/shm/z1.sh
  • /etc/cron.d/system
  • /etc/cron.daily/oanacroner
  • /etc/cron.hourly/oanacroner
  • /etc/cron.monthly/oanacroner
  • /etc/init.d/nfstruncate
  • /tmp/bashf
  • /tmp/bashg
  • /tmp/conn
  • /tmp/conns
  • /tmp/crondb
  • /tmp/httpd.conf
  • /tmp/irq.sh
  • /tmp/irqbalanc1
  • /tmp/java2
  • /tmp/kworkerds
  • /tmp/libapache
  • /tmp/pools.txt
  • /tmp/root.sh
  • /tmp/systemd-private-2270f1520zse4c8a94a91c107d5b9d1b-cups.service-sjwnOy
  • /tmp/Xagent2
  • /usr/lib/libiacpkmn.so.3
  • /usr/local/lib/libdns.so
  • /usr/local/lib/libjdk.so
  • /var/tmp/config.json
  • /var/tmp/java2
  • /var/tmp/kworkerds
  • /var/tmp/systemd-private-2270f1520zse4c8a94a91c107d5b9d1b-cups.service-sjwnOy
  • /tmp/{username}/run_script/{random}.sh → After every use
  • /tmp/ds

Elimina las carpetas siguientes:

  • /tmp/*index_bak*
  • /tmp/*httpd.conf*
  • /tmp/*httpd.conf
  • /tmp/a7b104c270
  • /tmp/Carbon
  • /tmp/systemd_conjestion/

Finalización del proceso

Finaliza los procesos siguientes si detecta que se ejecutan en la memoria del sistema afectado:

  • Processes connected to the following ports:
    • :3333
    • :4444
    • :5555
    • :6666
    • :7777
    • :3347
    • :14444
    • :14433
    • :13531
  • Processes connected to the following IP Address:
    • {BLOCKED}.{BLOCKED}.55.86:443
    • {BLOCKED}.{BLOCKED}.65.238
    • {BLOCKED}.{BLOCKED}.52.87
    • {BLOCKED}.{BLOCKED}.44.93
    • {BLOCKED}.{BLOCKED}.54.205
    • {BLOCKED}.{BLOCKED}.142.232
    • {BLOCKED}.{BLOCKED}.133.20
    • {BLOCKED}.{BLOCKED}.142.249
    • {BLOCKED}.{BLOCKED}.193.110
    • {BLOCKED}.{BLOCKED}.142.225
    • {BLOCKED}.{BLOCKED}.142.246
    • {BLOCKED}.{BLOCKED}.200.177
    • {BLOCKED}.{BLOCKED}.142.250
    • {BLOCKED}.{BLOCKED}.142.251
    • {BLOCKED}.{BLOCKED}.200.178
    • {BLOCKED}.{BLOCKED}.202.177
    • {BLOCKED}.{BLOCKED}.223.190
    • {BLOCKED}.{BLOCKED}.232.9
    • {BLOCKED}.{BLOCKED}.89.10
    • {BLOCKED}.{BLOCKED}.40.46
  • Processes with the following strings in its commandline:
    • {BLOCKED}l.eu
    • mine.{BLOCKED}pool.com
    • xmr.{BLOCKED}-pool.fr:8080
    • xmr.{BLOCKED}-pool.fr:3333
    • xmr.{BLOCKED}-pool.fr:6666
    • xmr.{BLOCKED}-pool.fr:7777
    • xmr.{BLOCKED}-pool.fr:443
    • prohash
    • 11231
    • Silence
    • wipefs
    • Xagent2
    • webchainminer
    • conjestion
    • {BLOCKED}ol.org
    • {BLOCKED}r.com
    • {BLOCKED}txmr.com
    • {BLOCKED}l.net
    • {BLOCKED}ate.com
    • {BLOCKED}r.com
    • {BLOCKED}ult.pro
    • {BLOCKED}MR.com
    • {BLOCKED}va.cc
    • {BLOCKED}Ocean.stream
    • {BLOCKED}l.de
    • {BLOCKED}o.be
    • {BLOCKED}h.net
    • xmr.{BLOCKED}l.online
    • monero.{BLOCKED}s.to
    • {BLOCKED}ool.com
    • {BLOCKED}l.xyz
    • {BLOCKED}nero.gq
    • {BLOCKED}i.cn
    • {BLOCKED}d.com
    • {BLOCKED}ool.com
    • {BLOCKED}tmining.com
    • monero.{BLOCKED}s.pro
    • berods
    • vmlinuz
    • dblaunchs
    • khugepageds
    • systemctI
    • webchainpool
    • {BLOCKED}ning.com
    • {BLOCKED}n@yahoo.com
    • {BLOCKED}hash.com
    • stratum.{BLOCKED}l.com:8888
    • nTKYg
    • qW3xT.2
    • ddgs.3013
    • ddgs.3012
    • biosetjenkins
    • AnXqV.yam
    • xmrigDaemon
    • xmrigMiner
    • xmrig
    • apaceha
    • cryptonight
    • stratum
    • performedl
    • irqba2anc1
    • irqba5xnc1
    • irqbnc1
    • ir29xc1
    • conns
    • irqbalance
    • crypto-pool
    • minexmr
    • XJnRj
    • NXLAi
    • BI5zj
    • askdljlqw
    • minerd
    • minergate
    • ysaydh
    • bonns
    • donns
    • Duck.sh
    • bonn.sh
    • conn.sh
    • kworker34
    • kw.sh
    • pro.sh
    • polkitd
    • acpid
    • icb5o
    • nopxi
    • irqbalanc1
    • mstxmr
    • deamon
    • disk_genius
    • 42HrCwmHSVyJSAQwn6Lifc3WWAWN56U8s2qAbm6BAagW6Ryh8JgWq8Q1JbZ8nXdcFVgnmAM3q86cm5y9xfmvV1ap6qVvmPe
    • 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQt989KEfGRt6Ww2Xg8
    • 46SDR76rJ2J6MtmP3ZZKi9cEA5RQCrYgag7La3CxEootQeAQULPE2CHJQ4MRZ5wZ1T73Kw6Kx4Lai2dFLAacjerbPzb5Ufg
    • 45cToD1FzkjAxHRBhYKKLg5utMGENqyamWrY8nLNkVQ4hJgLHex1KNRZcz4finRjMpAYmPxDaXVpN2rV1jMNyXRdMEaH1YA
    • 45hsTaSqTQM4K1Xeqkcy7eLzqdEuQ594fJVmQryCemQSCU878JGQdSDCxbhNyVjSkiaYat8yAfBuRTPSEUPZoARm9a5XEHZ
    • 47sghzufGhJJDQEbScMCwVBimTuq6L5JiRixD8VeGbpjCTA12noXmi4ZyBZLc99e66NtnKff34fHsGRoyZk3ES1s1V4QVcB
    • 44iuYecTjbVZ1QNwjWfJSZFCKMdceTEP5BBNp4qP35c53Uohu1G7tDmShX1TSmgeJr2e9mCw2q1oHHTC2boHfjkJMzdxumM
    • 49hNrEaSKAx5FD8PE49Wa3DqCRp2ELYg8dSuqsiyLdzSehFfyvk4gDfSjTrPtGapqcfPVvMtAirgDJYMvbRJipaeTbzPQu4
    • 4AniF816tMCNedhQ4J3ccJayyL5ZvgnqQ4X9bK7qv4ZG3QmUfB9tkHk7HyEhh5HW6hCMSw5vtMkj6jSYcuhQTAR1Sbo15gB
    • 4813za7ePRV5TBce3NrSrugPPJTMFJmEMR9qiWn2Sx49JiZE14AmgRDXtvM1VFhq

Otros detalles

Hace lo siguiente:

  • If run as a super user, it creates the following cron jobs for persistence:
    • Path: /var/spool/cron/root
      • Schedule: Every 10 minutes
      • Command: 0,10,20,30,40,50 0-23 * * * nohup syslogdmn >/dev/null 2>&1 &
    • Path: /etc/crontab
      • Schedule: Every 10 minutes
      • Command: 0,10,20,30,40,50 0-23 * * * root nohup syslogdmn >/dev/null 2>&1 &
    • Path: /etc/cron.d/root
      • Schedule: Every 10 minutes
      • Command: 0,10,20,30,40,50 0-23 * * * nohup syslogdmn >/dev/null 2>&1 &
    • Path: /var/spool/cron/crontabs/root
      • Schedule: Every 10 minutes
      • Command: 0,10,20,30,40,50 0-23 * * * nohup syslogdmn >/dev/null 2>&1 &
  • It uses the following default details on its coin mining routine (from config.json):
    • Algo: cryptonight
    • Url: {BLOCKED}.{BLOCKED}.28.19:8080
    • User: {user or root}
    • Password: x

  Soluzioni

Motore di scansione minimo: 9.800
Primo file di pattern VSAPI: 16.688.07
Data di pubblicazione del primo pattern VSAPI: 30 aprile 2021
Versione pattern VSAPI OPR: 16.689.00
Data di pubblicazione del pattern VSAPI OPR: 01 maggio 2021

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Coinminer.Linux.MALXMR.PUWEMD En caso de que el producto de Trend Micro ya haya limpiado, eliminado o puesto en cuarentena los archivos detectados, no serán necesarios más pasos. Puede optar simplemente por eliminar los archivos en cuarentena. Consulte esta página de Base de conocimientos para obtener más información.


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