Coinminer.Linux.MALXMR.UWEIS

This malicious cryptocurrency miner is dropped by exploiting two vulnerabilities in Elasticsearch.

This Coinminer arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be downloaded by other malware/grayware from remote sites.

Arrival Details

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

It may be downloaded by the following malware/grayware from remote sites:

• Coinminer.SH.MALXMR.ATNL

Other Details

This Coinminer does the following:

• It uses the system's central processing unit(CPU) resources to mine for cryptocurrency. This behavior makes the system run abnormally slow.
• It accepts the following parameters:
  
  • -a, --algo=ALGO specify the algorithm to use (cryptonight, cryptonight-lite, cryptonight-heavy)
  • -o, --url=URL URL of mining server
  • -O, --userpass=U:P username:password pair for mining server
  • -u, --user=USERNAME username for mining server
  • -p, --pass=PASSWORD password for mining server
  • --rig-id=ID rig identifier for pool-side statistics (needs pool support)
  • -t, --threads=N number of miner threads
  • -v, --av=N algorithm variation, 0 auto select
  • -k, --keepalive send keepalived packet for prevent timeout (needs pool support)
  • --nicehash enable nicehash.com support
  • --tls enable SSL/TLS support (needs pool support)
  • --tls-fingerprint=F pool TLS certificate fingerprint, if set enable strict certificate pinning
  • -r, --retries=N number of times to retry before switch to backup server (default: 5)
  • -R, --retry-pause=N time to pause between retries (default: 5)
  • --cpu-affinity set process affinity to CPU core(s), mask 0x3 for cores 0 and 1
  • --cpu-priority set process priority (0 idle, 2 normal to 5 highest)
  • --no-huge-pages disable huge pages support
  • --no-color disable colored output
  • --variant algorithm PoW variant
  • --donate-level=N donate level, default 5% (5 minutes in 100 minutes)
  • --user-agent set custom user-agent string for pool
  • -B, --background run the miner in the background
  • -c, --config=FILE load a JSON-format configuration file
  • -l, --log-file=FILE log all output to a file
  • -S, --syslog use system log for output messages
  • --max-cpu-usage=N maximum CPU usage for automatic threads mode (default 75)
  • --safe safe adjust threads and av settings for current CPU
  • --asm=ASM ASM code for cn/2, possible values: auto, none, intel, ryzen.
  • --print-time=N print hashrate report every N seconds
  • --api-port=N port for the miner API
  • --api-access-token=T access token for API
  • --api-worker-id=ID custom worker-id for API
  • --api-id=ID custom instance ID for API
  • --api-ipv6 enable IPv6 support for API
  • --api-no-restricted enable full remote access (only if API token set)
  • --dry-run test configuration and exit
  • -h, --help display this help and exit
  • -V, --version output version information and exit
• Or a configuration file in config.json found in the same directory