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    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

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    March 25, 2023
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    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – NJRAT – Active IOCs
    Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]
    March 24, 2023
    March 24, 2023
    Rewterz Threat Advisory – CVE-2023-20113 – Cisco SD-WAN vManage Software Vulnerability
    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

    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.

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Rewterz Threat ALert – MyKings Variant With Bootloader Persistence

August 21, 2019

Severity

High

Analysis Summary

Trend Micro published a blog post analyzing a variant of the MyKings botnet malware that includes a new bootloader persistence mechanism. The threat was originally detected through EternalBlue exploitation activity, which MyKings uses to propagate laterally. Upon install, the MyKings malware establishes persistence via several different methods, including through registry Run keys, scheduled tasks, and WMI objects. This most recent variant also expanded its persistence capabilities by adding a bootloader component. The bootkit alters kernel-level functions in order to ensure that the malicious code is executed on startup and that the difficulty of cleaning up the infection is greatly increased. The bootkit and other persistence mechanisms are used to perform a series of actions that eventually reach the goal of downloading additional payloads. One of the main payload types distributed by MyKings is cryptocurrency miners, which serve the purpose of providing a profit to the botnet operators.

Impact

Exposure of sensitive information

Indicators of Compromise

URLs

  • http[:]//js.mykings[.]top:280/helloworld[.]msi
  • hxxp[:]//js[.]mykings.top:280/v[.]sc

Malware Hash (MD5/SHA1/SH256)

  • e8ddefd237646a47debc01df9aa02fbcae40686f96b7860511c73798c7546201
  • 7a4f2f2702fababb0619556e67a41d0a09e01fbfdb84d47b4463decdbb360980
  • d5f907f9d2001ee5013c4c1af965467714bbc0928112e54ba35d142c8eab68bf
  • 790c213e1227adefd2d564217de86ac9fe660946e1240b5415c55770a951abfd
  • 80f8ba7992a5dbaa4a2f76263258d5d7bf3bb8994f9e8a4a5294f70ab8e38ea4
  • ab26a859633d1ec68e021226fab47870ed78fc2e6a58c70a7a7060be51247c1d
  • a3bb132ab1ba3e706b90d6fb514504105f174c4e444e87be7bce1995f798044d
  • 79bcb0b7ba00c4c65bf9b41cfe193fd917d92ab1d41456ac775836cec5cadc9a

Remediation

  • Block all threat indicators at your respective controls.
  • Always be suspicious about emails sent by unknown senders.
  • Never click on the link/attachments sent by unknown 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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