Analysis by: John Anthony Banes

 PLATFORM:

Windows

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

  • Threat Type: Coinminer

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Canal de infección 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 does not have any propagation routine.

It does not have any backdoor routine.

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

  TECHNICAL DETAILS

Tamaño del archivo 927,168 bytes
Tipo de archivo EXE
Residente en memoria No
Fecha de recepción de las muestras iniciales 06 Mar 2018

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.

Propagation

This Coinminer does not have any propagation routine.

Backdoor Routine

This Coinminer does not have any backdoor routine.

Other Details

This Coinminer does the following:

  • This hacking tool is a coin miner used to generate bitcoins and it requires credentials for the mining server.
  • It 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
    • --donate-level=N → donate level, default 0% (0 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 100)
    • --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.

  SOLUTION

Motor de exploración mínimo 9.850
Primer archivo de patrones de VSAPI 14.110.04
Primera fecha de publicación de patrones de VSAPI 05 Mar 2018
Versión de patrones OPR de VSAPI 14.111.00
Fecha de publicación de patrones OPR de VSAPI 06 Mar 2018

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Identify and terminate files detected as COINMINER_TOOLXMR.C-WIN32

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Scan your computer with your Trend Micro product to delete files detected as COINMINER_TOOLXMR.C-WIN32. 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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