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    March 19, 2023
    March 19, 2023
    Rewterz Threat Advisory – CVE-2022-42436 – IBM MQ Vulnerability
    Severity Medium Analysis Summary CVE-2022-42436 IBM MQ Managed File Transfer could allow a local user to obtain sensitive information from diagnostic files. Impact Indicators Of Compromise […]
    March 19, 2023
    March 19, 2023
    Rewterz Threat Advisory – ICS: Rockwell Automation Modbus TCP AOI Server Vulnerability
    Severity Medium Analysis Summary CVE-2023-0027 Rockwell Automation Modbus TCP AOI Server could allow a remote attacker to obtain sensitive information. By sending a malformed message, an […]
    March 17, 2023
    March 17, 2023
    Rewterz Threat Advisory – ICS: Multiple Schneider Electric IGSS Vulnerabilities
    Severity High Analysis Summary CVE-2023-27984 CVSS:7.8 Schneider Electric IGSS could allow a remote attacker to execute arbitrary code on the system, caused by improper input validation […]

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    Annual Threat Intelligence Report 2022
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  • Why Rewterz?

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    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

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    Read More about XDR

    Platform

    • Rewterz XDR
    • Rewterz Defense
    • Rewterz Threat Intelligence
    Rewterz Threat Alert – TZW Ransomware – Active IOCs

    Managed Security Services

    • Managed Security Monitoring
    • Remote SOC
    • Onsite SOC
    • Hybrid SOC

    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

  • Services

    Assess

    • Compromise Assessment
    • APT Assessment
    • Penetration Testing
    • Architecture Design & Review
    • Red Team Assessment
    • Purple Team Assessment
    • Social Engineering
    • Source Code Review

    Transform

    • SOC Consultancy
    • SOC Maturity Assessment
    • SOC Model Evaluation
    • SOC Gap Analysis
    • SIEM Gap Analysis
    • SIEM Optimization
    • SOC Content Pack

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    • Simulated Cyber Attack Exercise
    • Tabletop Exercise
    • Security Awareness and Training

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    March 19, 2023
    March 19, 2023
    Rewterz Threat Advisory – CVE-2022-42436 – IBM MQ Vulnerability
    Severity Medium Analysis Summary CVE-2022-42436 IBM MQ Managed File Transfer could allow a local user to obtain sensitive information from diagnostic files. Impact Indicators Of Compromise […]
    March 19, 2023
    March 19, 2023
    Rewterz Threat Advisory – ICS: Rockwell Automation Modbus TCP AOI Server Vulnerability
    Severity Medium Analysis Summary CVE-2023-0027 Rockwell Automation Modbus TCP AOI Server could allow a remote attacker to obtain sensitive information. By sending a malformed message, an […]
    March 17, 2023
    March 17, 2023
    Rewterz Threat Advisory – ICS: Multiple Schneider Electric IGSS Vulnerabilities
    Severity High Analysis Summary CVE-2023-27984 CVSS:7.8 Schneider Electric IGSS could allow a remote attacker to execute arbitrary code on the system, caused by improper input validation […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

    Connect with Us

    • Contact
    • Careers
Get in Touch
Rewterz
Rewterz Threat Alert – North Korean APT Kimsuky Aka Black Banshee – Active IOCs
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Rewterz Threat Alert – TZW Ransomware – Active IOCs

February 1, 2023

Severity

High

Analysis Summary

TZW ransomware is a type of malware that employs various tactics and techniques to infect systems and encrypt files for ransom. Here is a summary of the tactics and techniques commonly used by TZW ransomware: 

  • Phishing and social engineering: TZW ransomware can be delivered through phishing emails or other social engineering tactics, such as disguised links or attachments.
  • Exploit kits: TZW ransomware can be delivered through exploit kits, which exploit vulnerabilities in software to install malware on a target system. 
  • File encryption: TZW ransomware uses strong encryption algorithms to encrypt files on an infected computer, making them inaccessible to the user. 
  • Ransom demand: TZW ransomware typically leaves a ransom note on the infected computer, demanding payment in exchange for the decryption key. The ransom amount can vary and is typically requested in cryptocurrency. 
  • Network propagation: TZW ransomware can spread within a network by leveraging known vulnerabilities or by using credentials stolen from infected machines. 
  • File marker: TZW ransomware can leave a unique marker in the encrypted files, which can be used to identify the specific variant of TZW ransomware involved in an attack. 
  • Evasion techniques: TZW ransomware can employ techniques to evade detection, such as using encryption to hide its communications or disabling security software on the infected computer. 

TZW ransomware is a persistent threat to organizations, as it can cause significant data loss and disruption to operations. To mitigate the risk of infection, it is important to implement strong security measures and be vigilant against potential threats. This can include implementing robust backup and recovery strategies, regularly updating software and security patches, and providing employee training to recognize and avoid phishing and social engineering attacks.

Impact

  • File Encryption

Indicators of Compromise

MD5

  • eae94abe9753634f79a91ecb4da7ff72
  • 10daa4697b861d3dc45a0a03222ba132
  • f1ab4f5cbf5fc72c4033699edadc4622

SHA-256

  • 98e4a7b1d986cf70410dc14933dc2b3924056cb4cac52f0193cd3a93f58d6b07
  • b1a4e443f19c4910ffff0ed565395a28a4a6329a241aef29c29765c0ef33ce4f
  • c333a0afa8f9c38ff61d3618d8d3c7749e88cbba269c3345706898224da679dd

SHA-1

  • 9a080cd497b8aa0006dc953bd9891155210c609c
  • df2c4f580268ce9a57e0ffb815324779b5880c08
  • 858f3f7f656397fcf43ac5ea13d6d4cbe7a5ca11

Remediation

  • Block all threat indicators at your respective controls.
  • Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
  • Maintain cyber hygiene by updating your anti-virus software and implementing a patch management lifecycle.
  • Maintain Offline Backups – In a ransomware attack, the adversary will often delete or encrypt backups if they have access to them. That’s why it’s important to keep offline (preferably off-site), encrypted backups of data and test them regularly.
  • Emails from unknown senders should always be treated with caution.
  • Never trust or open ” links and attachments received from unknown sources/senders.

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
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