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Coinminer.Linux.MALXMR.UWEIU

February 01, 2019
 Analysis by: Michael Jhon Ofiaza
 PLATFORM:

Linux

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

  • Threat Type: Coinminer

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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.

  TECHNICAL DETAILS

File Size:

594,788 bytes

File Type:

ELF

File Compression:

UPX

Memory Resident:

No

Initial Samples Received Date:

30 Jan 2019

Payload:

Connects to URLs/IPs

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 for its coin mining routine:
    • Algorithm:"cryptonight_v8"
    • Username:"x"
    • Password:""
    • Mining pool: {BLOCKED}u.xyz:26750

It accepts the following parameters:

    • -h, --help -> show help
    • -v, --version ->show version number
    • -V, --version-long ->show long version number
    • -c, --config FILE ->common miner configuration file
    • -C, --poolconf FILE ->pool configuration file
    • --benchmark BLOCKVERSION ->ONLY do a benchmark and exit
    • --benchwait WAIT_SEC -> benchmark wait time
    • --benchwork WORK_SEC ->benchmark work time
    • --noCPU -> disable the CPU miner backend
    • --cpu FILE ->CPU backend miner config file
  • The following options can be used for automatic start without a guided config, If config exists then this pool will be top priority.
    • -o, --url URL ->pool url and port.
    • -O, --tls-url URL ->TLS pool url and port.
    • -u, --user USERNAME ->pool user name or wallet address
    • -r, --rigid RIGID ->rig identifier for pool-side statistics (needs pool support)
    • -p, --pass PASSWD ->pool password, in the most cases x or empty ""
    • --use-nicehash ->the pool should run in nicehash mode
    • --currency NAME ->currency to mine
  • Supported coin options:
    • aeon7
    • bbscoin
    • bittube
    • cryptonight
    • cryptonight_bittube2
    • cryptonight_masari
    • cryptonight_haven
    • cryptonight_heavy
    • cryptonight_lite
    • cryptonight_live_v7
    • cryptonight_live_v7_xor
    • cryptonight_superfast
    • cryptonight_v7
    • cryptonight_v8
    • cryptonight_v7_stellite
    • freehaven
    • graft
    • haven
    • intense
    • masari
    • monero
    • qrl
    • ryo
    • stellite
    • turtlecoin

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:

14.782.08

FIRST VSAPI PATTERN DATE:

30 Jan 2019

VSAPI OPR PATTERN File:

14.783.00

VSAPI OPR PATTERN Date:

31 Jan 2019

Scan your computer with your Trend Micro product to delete files detected as Coinminer.Linux.MALXMR.UWEIU. 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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