CISA warns that Chinese Hackers Using Open-source Exploitation Tools to Target U.S. Agencies

CISA warns that Chinese nation-state actors using publicly available information sources and common, well-known tactics, techniques, and procedures (TTPs) to target U.S. Government agencies.

These threat actors varying degrees of skills using open-source information to plan and execute cyber operations.

“CISA has observed Chinese MSS-affiliated cyber threat actors operating from the People’s Republic of China using commercially available information sources and open-source exploitation tools to target U.S. Government agency networks.”

Attacks Observed

CISA analyst was able to identify that there is a correlation between the public release of vulnerability and the targeted scanning of systems identified as being vulnerable.

Cyber threat actors also rely on Shodan, the CVE database, the NVD, and other open-source information to identify targets of opportunity and plan cyber operations.

By combining the information obtained from Shodan, the CVE database, and the NVD, attackers able to gain understanding about a specific vulnerability, as well as a list of systems that may be vulnerable to attempted exploits.

CISA observed that “cyber threat actors have used the same vulnerabilities to compromise multiple organizations across many sectors.”

Vulnerability Used

  • CVE-2020-5902: F5 Big-IP vulnerability
  • CVE-2019-19781: Citrix Virtual Private Network (VPN) Appliances
  • CVE-2019-11510: Pulse Secure VPN Servers
  • CVE-2020-0688: Microsoft Exchange Server

Tools Used

Cobalt Strike: CISA has observed the threat actors using Cobalt Strike to target commercial and Federal Government networks.

China Chopper Web Shell: CISA has observed the actors successfully deploying China Chopper against organizations’ networks.

Mimikatz: CISA has observed the actors using Mimikatz during their operations.

“CISA and the FBI also recommend that organizations routinely audit their configuration and patch management programs to ensure they can track and mitigate emerging threats.”

You can follow us on Linkedin, Twitter, Facebook for daily Cybersecurity, and hacking news updates.

Also Read

CISA Warns that More than 62,000 QNAP NAS Devices Affected with QSnatch Malware

CISA Releases Test Tool for Citrix ADC and Gateway Vulnerability – Sysadmins Can Test Now

Gurubaran

Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Recent Posts

Hackers Use ConnectWise SkyKick Credentials to Access Microsoft 365, Halting Cloud Backups

Attackers abused compromised ConnectWise Cloud Backup credentials to access Microsoft 365 customer environments, prompting ConnectWise…

1 day ago

Anthropic’s Claude AI Uncovers Origins of NSA-Provided Cryptographic Keys After 25 Years

Anthropic says an internal Claude research model reconstructed how the National Security Agency generated seeds…

1 day ago

Critical WordPress Flaws Allow Attackers to Execute Remote Code Without Authentication

Two WordPress Core vulnerabilities can be chained to execute remote code without authentication, according to…

1 day ago

OpenBSD Kernel Flaw Dating Back 37 Years Enables Local Privilege Escalation to Root

A newly disclosed OpenBSD kernel exploitation chain combines a shared memory accounting flaw with a…

1 day ago

GhostAction Hackers Hide Credential-Stealing Malware in Fake Font Files Across 94 GitHub Repositories

GhostAction attackers have expanded their GitHub credential theft campaign with a second stage that disguises…

1 day ago

SideCopy Hackers Target Indian Organizations With ReverseRAT Malware to Steal Data

Indian authorities have warned that SideCopy hackers are targeting Indian organizations, including academic institutions, with…

1 day ago