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    Rewterz Threat Alert – Lockbit Ransomware – Active IOCs

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    March 6, 2023
    Rewterz
    March 6, 2023
    Rewterz Threat Advisory – CVE-2023-27290 – IBM Observability with Instana missing Vulnerability
    Severity High Analysis Summary CVE-2023-27290 Docker based datastores for IBM Instana (IBM Observability with Instana 239-0 through 239-2, 241-0 through 241-2, and 243-0) do not currently […]
    March 5, 2023
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    March 5, 2023
    Rewterz Threat Alert – SmokeLoader Malware – Active IOCs
    Severity Medium Analysis Summary Smoke Loader – a malicious bot application – can be used to load additional malware. Smoke Loader has been spotted in the […]
    March 5, 2023
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    March 5, 2023
    Rewterz Threat Alert – Cobalt Strike Malware – Active IOCs
    Severity Medium Analysis Summary Cobalt Strike first appeared in 2012 in response to alleged flaws in the Metasploit Framework, an existing red team (penetration testing) tool. […]

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    Annual Threat Intelligence Report 2022
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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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    • Rewterz XDR
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    Rewterz Threat Alert – Lockbit 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
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    • Source Code Review

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    March 6, 2023
    Rewterz
    March 6, 2023
    Rewterz Threat Advisory – CVE-2023-27290 – IBM Observability with Instana missing Vulnerability
    Severity High Analysis Summary CVE-2023-27290 Docker based datastores for IBM Instana (IBM Observability with Instana 239-0 through 239-2, 241-0 through 241-2, and 243-0) do not currently […]
    March 5, 2023
    Rewterz
    March 5, 2023
    Rewterz Threat Alert – SmokeLoader Malware – Active IOCs
    Severity Medium Analysis Summary Smoke Loader – a malicious bot application – can be used to load additional malware. Smoke Loader has been spotted in the […]
    March 5, 2023
    Rewterz
    March 5, 2023
    Rewterz Threat Alert – Cobalt Strike Malware – Active IOCs
    Severity Medium Analysis Summary Cobalt Strike first appeared in 2012 in response to alleged flaws in the Metasploit Framework, an existing red team (penetration testing) tool. […]

    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
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Rewterz
Rewterz Threat Alert – SmokeLoader Malware – Active IOCs
January 27, 2023
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Rewterz Threat Alert – Lazarus (aka Hidden Cobra) APT Group – Active IOCs
January 27, 2023

Rewterz Threat Alert – Lockbit Ransomware – Active IOCs

January 27, 2023

Severity

High

Analysis Summary

LockBit ransomware takes as little as five minutes to deploy the encryption routine on target systems once it lands on the victim network. LockBit attacks leave few traces for forensic analysis as the malware loads into the system memory, with logs and supporting files removed upon execution. In one case, they found that the attack began from a compromised Internet Information Server that launched a remote PowerShell script calling another script embedded in a remote Google Sheets document. This script connects to a command and control server to retrieve and install a PowerShell module for adding a backdoor and establish persistence. To evade monitoring and go unnoticed in the logs, the attacker renamed copies of PowerShell and the binary for running Microsoft HTML Applications (mshta.exe); this prompted Sophos to call this a “PS Rename“ attack. The backdoor is responsible for installing attack modules and executes a VBScript that downloads and executes a second backdoor on systems restart.

LockBit strives to target different sectors throughout the world and has just rebranded for the second time. Operators and affiliates behind the LockBit ransomware started transitioning to LockBit 3.0 around June 2022. LockBit 3.0, also known as LockBit Black, is active and out there, and the BFSI Sector makes up 1/3rd of its victims. This latest LockBit version has a new extortion model that allows them to purchase stolen data during attacks. Rapid affiliate adoption of LockBit 3.0 has resulted in a large number of victims being identified on the new “Version 3.0” leak sites, a collection of public blogs that identify non-compliant victims and release extracted data.

In September 2022, researchers discovered that LockBit 3.0 ransomware is being delivered in Word document format while masquerading as job application emails in NSIS format.

The particular distribution method has not yet been discovered, but given that the file names include people’s names, such as ‘Lim Gyu Min.docx’ or ‘Jeon Chae Rin.docx,’ it is possible that they were spread disguised as job applications, as in previous occurrences.

It was recently discovered that LockBit 2.0 and LockBit 3.0 are being distributed once more with merely a filename change. The latest versions are being delivered using phishing emails that seem like job applications, compared to earlier examples where word files or emails with copyright claims were utilized.

LockBit has recently been distributed without restriction to version or identical filename. 

Therefore, users must examine the file extensions of document files, update apps and V3 to the newest version, and be very cautious when opening files from unidentified sources.

ransom note:

Impact

  • Security Bypass
  • Information Theft
  • Files Encryption

Indicators of Compromise

MD5

  • b0916724ff4118bf213e31cd198c0afd
  • 01c9561a15dc451562ba536d8239fa41
  • ebd239b8b8fe486b2a13a5896a96d044
  • 0ee7386109b1f3596ae62735cf53f6b3

SHA-256

  • 4bb152c96ba9e25f293bbc03c607918a4452231087053a8cb1a8accb1acc92fd
  • 5181d2e71e8e73a82712a483a80aaea94e1efa785f2b8b8ee9641544c0b652f0
  • 2ecf1fe02d8fb099b68e4d9bceeeadbe5fc8347f5a76d52f35ed48b516963735
  • 54b45f35926b12f7853e4854ae1d0a233ba1817451450d9b9fdf4e9b1412024f

SHA-1

  • 12ac32d012e818c78d6db790f6e11838ca75db88
  • 9566de40d3435be6fac364e11d50d67d8a3c8dc4
  • 60821226d8d934d488d4f8e8081c32c6a73f8929
  • 0a67f0154a003fd06597a28dd2fd3e2f63b333b7

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 implement 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.
  • Users should upgrade their applications and V3 to the most recent version and avoid opening documents from unknown sources.
  • 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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