Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Alerts

ALPHV exploits Veritas Backup flaws

April 5, 2023
Reading Time: 2 mins read
in Alerts

 

 

Mandiant has reported that an ALPHV/BlackCat ransomware affiliate is using three vulnerabilities in the Veritas Backup product to gain initial access to targeted networks. The operation emerged in December 2021 and is considered to be run by former members of the Darkside and Blackmatter programs.

Mandiant tracks the affiliate as ‘UNC4466‘ and notes that this method is a deviation from the typical intrusion, which relies on stolen credentials.

The three high-severity flaws targeted by UNC4466 are CVE-2021-27876, CVE-2021-27877, and CVE-2021-27878, all of which impact the Veritas Backup software. The vendor disclosed them in March 2021 and released a fix with version 21.2, but many endpoints remain vulnerable as they have not updated to a safe version.

According to Mandiant, a commercial scanning service showed that there are more than 8,500 IP addresses on the public web that advertise the “Symantec/Veritas Backup Exec ndmp” service on the default port 10000 and on ports 9000 and 10001.

While this search result does not directly identify vulnerable systems, as the application versions were not identifiable, it demonstrates the prevalence of internet-exposed instances that could potentially be probed by attackers.

UNC4466 compromises an internet-exposed Windows server running Veritas Backup Exec by using the publicly-available Metasploit module and maintains persistent access to the host.

After the initial compromise, the threat actor uses the Advanced IP Scanner and ADRecon utilities to gather information about the victim’s environment. UNC4466 uses BITS transfers to download SOCKS5 tunneling tools and deploys the ransomware payload by adding immediate tasks to the default domain policy, disabling the security software, and executing the encryptor. To escalate privileges, UNC4466 utilizes Mimikatz, LaZagne, and Nanodump to steal valid user credentials.

Mandiant’s report provides guidance that defenders can follow to detect UNC4466 attacks timely and mitigate them before the ALPHV payload is executed on their systems. These vulnerabilities have been known since March 2021, and Veritas has issued a fix in version 21.2.

Therefore, it is essential to update to the latest version of the Veritas Backup software to protect against these types of attacks. Organizations should also restrict access to their systems to only authorized users, monitor their systems for suspicious activity, and implement two-factor authentication to reduce the risk of credential theft.

 

Reference:
  • ALPHV Ransomware Affiliate Targets Vulnerable Backup Installations to Gain Initial Access

Tags: ALPHVApril 2023BlackCatCyber AlertCyber Alerts 2023RansomwareVeritas BackupVulnerabilities
ADVERTISEMENT

Related Posts

Toys R Us Canada Data Breach Alert

Fake LastPass Death Claims Breach Vaults

October 28, 2025
Toys R Us Canada Data Breach Alert

ChatGPT Atlas Browser Fooled By Fake Url

October 28, 2025
Toys R Us Canada Data Breach Alert

Chrome Zero Day Delivers LeetAgent

October 28, 2025
Qilin Ransomware Uses Hybrid Attack

Qilin Ransomware Uses Hybrid Attack

October 28, 2025
Qilin Ransomware Uses Hybrid Attack

Hackers Exploit Outdated WordPress Plugins

October 28, 2025
Smishing Triad Tied To Global Phishing

Smishing Triad Tied To Global Phishing

October 28, 2025

Latest Alerts

Fake LastPass Death Claims Breach Vaults

ChatGPT Atlas Browser Fooled By Fake Url

Chrome Zero Day Delivers LeetAgent

Smishing Triad Tied To Global Phishing

Qilin Ransomware Uses Hybrid Attack

Hackers Exploit Outdated WordPress Plugins

Subscribe to our newsletter

    Latest Incidents

    Google Contractor Steals Play Files

    Vibra Hospital Data Breach Probe

    Hackers Target Swedish Power Grid

    Ex-L3Harris Cyber Boss Charged With Espionage

    Safepay Hits Xortec Video Surveillance Firm

    Hackers Breach Verstappen Data

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial