Analysis by: Noel Anthony Llimos

 PLATFORM:

Linux

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It connects to a website to send and receive information.

  TECHNICAL DETAILS

File Size: 69,237 bytes
File Type: ELF
Memory Resident: Yes
Initial Samples Received Date: 22 Apr 2019

Arrival Details

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Backdoor Routine

This Hacking Tool connects to the following websites to send and receive information:

  • 216.{BLOCKED}.71.180:443

Other Details

This Hacking Tool does the following:

  • Terminate Connection
  • Transfer data from one Socket to another
  • It has three different functionalities:
    • ConnectConnect (CC)
      • used to access a desired server internally (inside the network access)
    • ListenListen (LL)
      • used to access a desired server externally (outside the network access)
    • Port Forwarder (PF)
      • used to send data from one port to another (port forwarding functionality)
  • Request for a new connection
  • It has the following set of commands:
    • -C, --ccnode
      • Use ConnectConnect functionality
    • -s, --server
      • Host and Port of the server
      -c, --llhost
      • The host and port of the ListenListen mode.
      -i, --interval
      • Time interval for reporting to the ListenListen mode.
      -k, --key
      • Generate Poorman's encryption
      -a, --auth
      • Set password to authenticate a control connection with ListenListen mode
      -F, --lcnode
      • Become a ListenConnect node.
      -p, --port number
      • The port to listen for client connection
      -s, --server host:port
      • The host and port of the destination server
      -m, --method {f|s}
      • f: Fork s: Select
      -l, --log file
      • Write logs to file.
      -g, --level number
      • Log level detail
      -n, --nodaemon
      • Do not become daemon
      -h, --help
      • Prompt help
      -v, --version
      • Display version

  SOLUTION

Minimum Scan Engine: 9.850
SSAPI PATTERN File: 2.168.48
SSAPI PATTERN Date: 23 Apr 2019

Scan your computer with your Trend Micro product to delete files detected as HackTool.Linux.AutoConn.AUSWM. 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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