Coinminer.Linux.MALXMR.UWEJJ

 Analysis by: Jay Bradley Nebre

 ALIASES:

Linux.Coinminer(Norton)

 PLATFORM:

Linux

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

  • Threat Type: Coinminer

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware

This Coinminer may be downloaded by other malware/grayware from remote sites.

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

  TECHNICAL DETAILS

File Size:

2,774,416 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

15 May 2019

Payload:

Hogs resources

Arrival Details

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

Other Details

This Coinminer does the following:

  • It uses the following details on its coin mining routine:
    • algorithm:"cryptonight"
    • URL:{BLOCKED}r.{BLOCKED}l.com:13531
    • User:43zqYTWj1JG1H1idZFQWwJZLTos3hbJ5iR3tJpEtwEi43UBbzPeaQxCRysdjYTtdc8aHao7csiWa5BTP9PfNYzyfSbbrwoR.xmrxmr2019
    • Password:x
  • 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, bulldozer.
    • --print-time=N print hashrate report every N seconds
    • --api-worker-id=ID custom worker-id for API
    • --api-id=ID custom instance ID for API
    • --http-enabled enable HTTP API
    • --http-host=HOST bind host for HTTP API (by default 127.0.0.1)
    • --http-port=N bind port for HTTP API
    • --http-access-token=T access token for HTTP API
    • --http-no-restricted enable full remote access to HTTP API (only if access token set)
    • --dry-run test configuration and exit
    • -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.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.112.02

FIRST VSAPI PATTERN DATE:

15 May 2019

VSAPI OPR PATTERN File:

15.113.00

VSAPI OPR PATTERN Date:

16 May 2019

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