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    Rewterz Threat Alert – Chaos Ransomware – Active IOCs

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    • Compromise Assessment
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    • Source Code Review

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    May 25, 2023
    Rewterz
    May 25, 2023
    Rewterz Threat Alert – STOP (DJVU) Ransomware – Active IOCs
    Severity High Analysis Summary The STOP/DJVU ransomware initially made headlines in 2018 and has since been attacking individuals all around the world. It’s widespread on torrent […]
    May 24, 2023
    Rewterz
    May 24, 2023
    Rewterz Threat Advisory – CVE-2023-30440 – IBM PowerVM Hypervisor Vulnerability
    Severity Medium Analysis Summary CVE-2023-30440 IBM PowerVM Hypervisor could allow a local attacker with control a partition that has been assigned SRIOV virtual function (VF) to […]
    May 24, 2023
    Rewterz
    May 24, 2023
    Rewterz Threat Advisory – CVE-2023-33246 – Apache RocketMQ Vulnerability
    Severity High Analysis Summary CVE-2023-33246 Apache RocketMQ could allow a remote attacker to execute arbitrary commands on the system, caused by a flaw when using the […]

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    pdf-file (1)
    Annual Threat Intelligence Report 2022
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    • 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.

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    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.
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  • Platform
    xdrLogo
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    Read More about XDR

    Platform

    • Rewterz XDR
    • Rewterz Defense
    • Rewterz Threat Intelligence
    Rewterz Threat Alert – Chaos 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

    Train

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

    Respond

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  • Solutions
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    Resources

    • Blog
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    May 25, 2023
    Rewterz
    May 25, 2023
    Rewterz Threat Alert – STOP (DJVU) Ransomware – Active IOCs
    Severity High Analysis Summary The STOP/DJVU ransomware initially made headlines in 2018 and has since been attacking individuals all around the world. It’s widespread on torrent […]
    May 24, 2023
    Rewterz
    May 24, 2023
    Rewterz Threat Advisory – CVE-2023-30440 – IBM PowerVM Hypervisor Vulnerability
    Severity Medium Analysis Summary CVE-2023-30440 IBM PowerVM Hypervisor could allow a local attacker with control a partition that has been assigned SRIOV virtual function (VF) to […]
    May 24, 2023
    Rewterz
    May 24, 2023
    Rewterz Threat Advisory – CVE-2023-33246 – Apache RocketMQ Vulnerability
    Severity High Analysis Summary CVE-2023-33246 Apache RocketMQ could allow a remote attacker to execute arbitrary commands on the system, caused by a flaw when using the […]

    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 Advisory – Multiple Adobe ColdFusion Vulnerabilities
March 17, 2023
Rewterz
Rewterz Threat Advisory – ICS: Multiple Schneider Electric IGSS Vulnerabilities
March 17, 2023

Rewterz Threat Alert – Chaos Ransomware – Active IOCs

March 17, 2023

Severity

High

Analysis Summary

Chaos is a customizable ransomware builder that emerged on June 9 2021 (in underground forums) by falsely marketing itself as the .NET version of Ryuk despite sharing no such overlaps with the notorious counterpart. Since then, it has undergone active development and quick advancements, which have persuaded several attacker groups to adopt it. The most recent version, known as Yashma, was observed in the wild in May 2022. Yashma allows attackers to configure the ransomware so that it does not execute dependent on the language chosen on the victim’s device. It can also disable antivirus software, backup services, storage services, remote desktop services, and credential vault services on victims’ machines. Malware developers frequently employ this strategy to avoid infecting computers in their own region, which would draw the attention of local law authorities. The Chaos ransomware generator is said to still lack some of the capabilities that are seen in many existing ransomware families.

Chaos Ransomware is a serious threat to individuals and organizations, as it can result in the loss of valuable data and disruption to normal business operations. To protect against Chaos Ransomware and other similar threats, it is recommended that individuals and organizations implement a robust cybersecurity program, including regular software updates, anti-malware protection, and employee training on the dangers of phishing and social engineering.

ransom note.

Impact

  • File Encryption

Indicators of Compromise

MD5

  • a866ae68e7b0ea26a64e7bae31864920
  • 88a65f4208e3527decd4128072084dd8
  • 80588ef251b3ebaa3da89fece7dd9743
  • 8f033c07f57f8ce2e62e3a327f423d55

SHA-256

  • 2c95abfc28f9ce4318d470cd020b6dc71242ce31a14b4dad069b8e2e6be48f42
  • 9dab6749bdeef4e92502efed4e21f46f8590b7534d01b93576a63f4ac1e77851
  • f4a5aa80ca26fec66638d8d42d54bf261580b8a2d6a664cf74dd47028bfe20a8
  • 6bda9faf719bb7a55e822667d909086193d323d8fa06b1a3d62437fcf6a9e24b

SHA-1

  • 2a82d14c95d97657402f92f23f4bc8d7d65cd7f4
  • aff3a50149617b1d84544e58a7f08baf06ac6473
  • 8e9cadf5793282e9c3127b0c6de07960fe087711
  • 57ac411652d7b1d9accaa8a1af5f4b6a45ef7448

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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