PUA.WIN64.TOOLXMR.GZ


 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

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 may be manually installed by a user.

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

  TECHNICAL DETAILS

File Size:

1,555,968 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

24 Apr 2017

Payload:

Connects to URLs/IPs, Acts as a proxy server, Modifies system registry

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 manually installed by a user.

Other Details

This Coinminer does the following:

  • It does not need specific arguments/parameters if a configuration file "config.json" is found in the same directory.

It accepts the following parameters:

  • -a, --algo=ALGO specify the algorithm to use [scrypt(N, 1, 1), SHA-256d, Shabal-256 MemoHash, Blake-256 14-rounds (SFR), Blake-256 single sha256 merkle, Blake2-S (256), BMW 256, C11, Cryptonight-light, Monero, Diamond-Groestl, Fresh, GroestlCoin, Heavy, Keccak, Luffa, Lyra2RE, Lyra2REv2 (Vertcoin), Myriad-Groestl, M7-M (Magicoin), NeoScrypt(128, 2, 1), Nist5, Pluck:128 (Supcoin), Pentablake, Quark, Qubit, Shavite3, Skein+Sha (Skeincoin), Double Skein (Woodcoin), S3, SibCoin, MachineCoin, Blake-256 8-rounds, VeltorCoin, Permuted x11, X11, X13, X14, X15, X17, ZR5]
  • -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
  • --cert=FILE certificate for mining server using SSL
  • -x, --proxy=[PROTOCOL://]HOST[:PORT] connect through a proxy
  • -t, --threads=N number of miner threads (default: number of processors)
  • -r, --retries=N number of times to retry if a network call fails
  • -R, --retry-pause=N time to pause between retries, in seconds (default: 30)
  • --time-limit=N maximum time [s] to mine before exiting the program.
  • -T, --timeout=N timeout for long poll and stratum (default: 300 seconds)
  • -s, --scantime=N upper bound on time spent scanning current work when long polling is unavailable, in seconds (default: 5)
  • --randomize Randomize scan range start to reduce duplicates
  • -f, --diff-factor Divide req. difficulty by this factor (std is 1.0)
  • -m, --diff-multiplier Multiply difficulty by this factor (std is 1.0)
  • -n, --nfactor neoscrypt N-Factor
  • --coinbase-addr=ADDR payout address for solo mining
  • --coinbase-sig=TEXT data to insert in the coinbase when possible
  • --max-log-rate limit per-core hashrate logs (default: 5s)
  • --no-longpoll disable long polling support
  • --no-getwork disable getwork support
  • --no-gbt disable getblocktemplate support
  • --no-stratum disable X-Stratum support
  • --no-extranonce disable Stratum extranonce support
  • --no-redirect ignore requests to change the URL of the mining server
  • -q, --quiet disable per-thread hashmeter output
  • --no-color disable colored output
  • -D, --debug enable debug output
  • -P, --protocol-dump verbose dump of protocol-level activities
  • --hide-diff hide submitted block and net difficulty
  • -B, --background run the miner in the background
  • --benchmark run in offline benchmark mode
  • --cputest debug hashes from cpu algorithms
  • --cpu-affinity set process affinity to cpu core(s), mask 0x3 for cores0 and 1
  • --cpu-priority set process priority (default: 0 idle, 2 normal to 5 highest)
  • --on-idle=secs compute on system idle (number of seconds)
  • --on-idle-low=pct lower mining cpu percent, when miner is not active
  • -b, --api-bind IP/Port for the miner API (default: 127.0.0.1:4048)
  • --api-remote Allow remote control
  • --max-temp=N Only mine if cpu temp is less than specified value (linux)
  • --max-rate=N[KMG] Only mine if net hashrate is less than specified value
  • --max-diff=N Only mine if net difficulty is less than specified value
  • -M --monit=URL Send basic stats to a monitoring server
  • --monit-time=S Interval between two monitor requests (seconds)
  • -c, --config=FILE load a JSON-format configuration file
  • -V, --version display version information and exit
  • -h, --help display this help text 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

SSAPI PATTERN File:

2.139.00

SSAPI PATTERN Date:

10 Jan 2019

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Identify and terminate files detected as PUA.WIN64.TOOLXMR.GZ

[ 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 4

Scan your computer with your Trend Micro product to delete files detected as PUA.WIN64.TOOLXMR.GZ. 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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