BRANDEFENSE BRANDEFENSE
  • Home
  • Product
    How it works?
    Platform Overview
    Cyber Intelligence
    Brand & Reputation Protection
    Exposure Management
    Solutions
    Threat Intelligence Service
    Brand Protection
    Vulnerability Management
    Attack Surface Management
    Fraud Protection
    VIP Security
    Vulnerability Intelligence
    By Use Case
    Preventing Data Leakage
    Phishing Monitoring
    Account Takeover Detection
    Stolen Credit Cards
    Dark Web Monitoring
    Remediation and Takedown
    brandefense background
    Eliminate risks
    Explore the Brandefense
  • Blog
  • Resources
    Security News
    Threat Intelligence Researches
    Digital Risk Protection – FAQ
    We in the Press
  • Partners
    Channel Partners
    Deal Registration
  • Company
    About Us
    Career
    Privacy Policy
    Terms of Use
    Contact Us
Free Trial

BRANDEFENSE

  • Home
  • Product
    How it works?
    Platform Overview
    Cyber Intelligence
    Brand & Reputation Protection
    Exposure Management
    Solutions
    Threat Intelligence Service
    Brand Protection
    Vulnerability Management
    Attack Surface Management
    Fraud Protection
    VIP Security
    Vulnerability Intelligence
    By Use Case
    Preventing Data Leakage
    Phishing Monitoring
    Account Takeover Detection
    Stolen Credit Cards
    Dark Web Monitoring
    Remediation and Takedown
    brandefense background
    Eliminate risks
    Explore the Brandefense
  • Blog
  • Resources
    Security News
    Threat Intelligence Researches
    Digital Risk Protection – FAQ
    We in the Press
  • Partners
    Channel Partners
    Deal Registration
  • Company
    About Us
    Career
    Privacy Policy
    Terms of Use
    Contact Us
BlackCat Ransomware Is Targeted Vulnerable Microsoft Exchange Servers

BlackCat Ransomware Is Targeted Vulnerable Microsoft Exchange Servers

BRANDEFENSE
Security News
15/06/2022

Last updated on December 12th, 2022 at 02:26 pm

Cyber threat actors have been found to launch attack campaigns by exploiting vulnerable Microsoft Exchange servers to spread BlackCat ransomware. After gaining access to vulnerable Microsoft Exchange servers, BlackCat ransomware was found to be distributed to target systems with the PsExec tool. In this way, threat actors infiltrate target systems, obtain critical identity data of users and carry out “double extortion” activities. Double Extortion is the name given to cases where threat actors threaten to leak data or publish some of it on the Internet, even if the ransom is paid in ransomware-infected organizations.

BlackCat ransomware was first observed in 2021 and developed with the Rust programming language. RaaS (Ransomware-as-a-Service) operators aim to ensure persistence by gaining unauthorized access to multiple systems on the target network before ransomware activities. How BlackCat ransomware infects victims differ according to the techniques and tactics of RaaS operators. For example, It is known that the FIN12 threat group, which organizes ransomware campaigns such as Ryuk, Hive, and Conti, has been one of the BlackCat operators since March 2022. BlackCat ransomware is also distributed by the DEV-0504 threat group, which uses the Stealbit malware of the LockBit threat group. The DEV-0504 threat group is known to use BlackMatter, Conti, LockBit 2.0, Revil, and Ryuk ransomware.

The Microsoft Exchange Server vulnerabilities used in the said attack campaign are as follows;

  • CVE-2021-26855
  • CVE-2021-26858
  • CVE-2021-26857
  • CVE-2021-27065

Using ransomware with different versions in attack campaigns significantly increases the risk of institutions and organizations encountering BlackCat-like malware. In this context, in order not to be the target of similar ransomware attacks;

  • Beware of untrusted e-mail content,
  • Not opening additional files/links of suspicious sender mail addresses,
  • Using reliable Anti-Malware solutions
  • Using licensed and current technologies,
  • It is recommended to block shared IoC findings related to the malware campaign by security solutions.
Blackcat blackcat ransomware Microsoft
Share on Facebook Share on Twitter
Search
Categories
APT GroupsBlogDark WebDRPSFraudRansomwareSector AnalysisSecurity NewsVIP SecurityWe in the PressWeekly Newsletter
Recent Posts
  • MOVEit Transfer Software Exploited Through Critical Zero-Day Vulnerability
    MOVEit Transfer Software Exploited Through Critical Zero-Day Vulnerability
  • “Triangulation Trojan” Launches Sophisticated Attack on Apple Devices
    “Triangulation Trojan” Launches Sophisticated Attack on Apple Devices
  • Perspective of the Month | APT Groups
    Perspective of the Month | APT Groups
  • BellaCiao: The New Malware From Iran’s Charming Kitten
    BellaCiao: The New Malware From Iran’s Charming Kitten
2023 Ransomware Trends Report
Let’s Dive in Ransomware Attack Trends
Report

Let’s Dive in Ransomware Attack Trends

Download Report
Follow us!

Continue Reading

Previous post

A Critical Security Vulnerability Detected in Apple M1 Processor: “PACMAN”

a critical security vulnerability detected in apple m1 processor: “pacman”
security news weekly 24
Next post

Security News – Week 24

particle element
We know what hackers know about you
Our cyber threat intelligence and security research team is ready to help you.
Request a demo
Free Trial
Contact
Login

Follow us on

brandefense logo brandefense

Brandefense is solving SOC’s complex challenges. We are here to help Brandefense customers to protect their brands and reputations against cyber threats.

United States:

300 Delaware Ave. Ste 210 #328 Wilmington, DE 19801 / USA

Republic of Turkey:

Üniversiteler Mahallesi, 1605.Cadde, Kapı No:3/1, No: 204, 06800 Çankaya/Ankara 06800

© 2022 Brandefense. All rights reserved.

Solutions
Threat IntelligenceBrand ProtectionVulnerability ManagementFraud ProtectionVIP SecurityAttack Surface ManagementVulnerability Intelligence
Use Case
Data LeakagePhishing MonitoringAccount Takeover DetectionStolen Credit CardsDark Web MonitoringRemediation / Takedown
Partners
Channel PartnersDeal Registration
Company
AboutCareerPrivacy PolicyTerms Of UseContact
Manage Cookie Consent
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage vendors Read more about these purposes
View preferences
{title} {title} {title}
Close
Search

Hit enter to search or ESC to close