Coinminer.Linux.KERBERDS.A

This new version of KERBERDS, a known crypto-mining malware that uses an ld.so.preload-based rootkit for stealth, was seen propagating by telnet bruteforce attacks.

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 uses the system's central processing unit (CPU) and/or graphical processing unit (GPU) resources to mine cryptocurrency.

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.

Other Details

This Coinminer does the following:

• It uses the following details on its coin mining routine:
  • algorithm: rx/0
  • url: {BLOCKED}6vifaxsi9vovnc9jjay2l.com:80 / {BLOCKED}.{BLOCKED}.120.73:80
  • user:48tKyhLzJvmfpaZjeEh2rmWSxbFqg7jNzPvQbLgueAc6avfKVrJFnyAMBuTn9ZeG4A3Gfww512YNZB9Tvaf52aVbPHpJFXT
  • pass: x
• Accepts the following parameters:
  • -a, --algo=ALGO ? cryptonight (default) or cryptonight-lite
  • -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
  • -t, --threads=N ? number of miner threads
  • -v, --av=N ? algorithm variation, 0 auto select
  • -k, --keepalive ? send keepalived for prevent timeout (need pool support)
  • -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
  • --max-cpu-usage=N ? maximum CPU usage for automatic threads mode (default 75)
  • --safe ? safe adjust threads and av settings for current CPU
  • --nicehash ? enable nicehash/xmrig-proxy support
  • --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
  • -h, --help ? display this help and exit
  • -V, --version ? output version information and exit

It uses the system's central processing unit (CPU) and/or graphical processing unit (GPU) resources to mine cryptocurrency. This behavior makes the system run abnormally slow.