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    Rewterz Threat Alert – Eight Exploits Used in BlackSquid Attacks

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    March 15, 2023
    March 15, 2023
    Rewterz Threat Alert -New Golang-Based Botnet GoBruteforcer Breaches Web Servers – Active IOCs
    Severity High Analysis Summary According to researchers, a Golang-based botnet named GoBruteforcer has been discovered, which is specifically targeting web servers running FTP, MySQL, phpMyAdmin, and […]
    March 15, 2023
    March 15, 2023
    Rewterz Threat Alert – DarkComet RAT (Remote Access Trojan) – Active IOCs
    Severity High Analysis Summary DarkComet RAT (Remote Administration Tool) is a type of malware that is designed to allow attackers to gain remote access to a […]
    March 15, 2023
    March 15, 2023
    Rewterz Threat Advisory -Multiple Microsoft Windows Products Vulnerabilties
    Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]

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    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
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  • 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 – Eight Exploits Used in BlackSquid Attacks

    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

    • Incident Analysis
    • Incident Response
  • Solutions
  • Resources

    Resources

    • Blog
    • Press Releases
    March 15, 2023
    March 15, 2023
    Rewterz Threat Alert -New Golang-Based Botnet GoBruteforcer Breaches Web Servers – Active IOCs
    Severity High Analysis Summary According to researchers, a Golang-based botnet named GoBruteforcer has been discovered, which is specifically targeting web servers running FTP, MySQL, phpMyAdmin, and […]
    March 15, 2023
    March 15, 2023
    Rewterz Threat Alert – DarkComet RAT (Remote Access Trojan) – Active IOCs
    Severity High Analysis Summary DarkComet RAT (Remote Administration Tool) is a type of malware that is designed to allow attackers to gain remote access to a […]
    March 15, 2023
    March 15, 2023
    Rewterz Threat Advisory -Multiple Microsoft Windows Products Vulnerabilties
    Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]

    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 – CVE-2018-16871 – Linux Kernel “nfsd4_verify_copy()” Vulnerability
June 3, 2019
Rewterz
Rewterz Threat Alert – GoldBrute Botnet Brute Forcing 1.5 Million RDP Servers
June 10, 2019

Rewterz Threat Alert – Eight Exploits Used in BlackSquid Attacks

June 10, 2019

Severity

Medium

Analysis Summary

A new malware family they have labeled “BlackSquid”. This malware targets web servers, network drives, and removable drives. For defense, BlackSquid employs anti-virtualization, anti-debugging, and anti-sandboxing methods, and will abort its installation if it determines it is being examined. Usernames are checked against a list of common sandbox usernames, diskdrive model names are compared to common virtual drive names, and the device driver names are also compared against a list of common names to determine if the infection should continue or not. For offense, it utilizes eight exploits, including EternalBlue and DoublePulsar, as well as dictionary attacks to gain access to its target. Once installed, it has the ability to propagate laterally within the network.

Vulnerabilities Exploited

CVE-2014-6287

CVE-2014-6287

CVE-2017-8464

CVE-2017-12615

CVE-2017-0146

CVE-2017-0145

CVE-2017-0144

Impact

Exposure of sensitive information

Indicators of Compromise

URLs

  • http[:]//m9f[.]oss-cn-beijing[.]aliyuncs[.]com/A[.]exe
  • http[:]//m9f[.]oss-cn-beijing[.]aliyuncs.com/Black[.]hta

Malware Hash (MD5/SHA1/SH256)

  • 14f8dc79113b6a2d3f378d2046dbc4a9a7c605ce24cfa5ef9f4e8f5406cfd84d
  • 3596e8fa5e19e860a2029fa4ab7a4f95fadf073feb88e4f82b19a093e1e2737c
  • 515caf6b7ff41322099f4c3e3d4846a65768b7f4b3166274afc47cb301eeda98
  • 8974da4d200f3ca11aa0bc800f23d7a2be9a3e4e6311221888740c812d489116
  • 8dbd331784e620bb0ca33b8515ca9df9a7a049057b39a2da5242323943d730b4
  • aa259b168ec448349e91a9d560569bdb6fabd811d78888c6080065a549f60cb0

Remediation

  • Block threat indicators at your respective controls.
  • Make sure all vulnerable devices are up-to-date and patched against these vulnerabilities.

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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