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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

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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.
    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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Moving Ahead of Single-Step Password Authentication
August 27, 2019
Rewterz
Rewterz Threat Advisory – CVE-2019-9569 – Delta Controls enteliBUS Controllers Code Execution vulnerability
August 30, 2019

Rewterz Threat Alert – LYCEUM Targeting Energy Sector in the Middle East

August 28, 2019

Severity

Medium

Analysis Summary

A new group LYCEUM is found focusing on critical infrastructure organizations in the Middle East. It uses simple techniques to compromise targets and deploys post-intrusion tools. Operating since 2018 and having targeted South African targets, LYCEUM has now turned its focus to Oil and Gas companies in the Middle East since April 2019. Also referred to as ‘Hexane’, LYCEUM focuses on collecting information, rather than disrupting operations, according to security experts.

It was found that LYCEUM uses password spraying and brute-force attacks to compromise email accounts of individuals working for their target organization. The attackers send spear-phishing emails to executive level employees of the target organizations carrying malicious Excel spreadsheets that install DanBot – a remote access trojan (RAT) with basic capabilities.

LYCEUM uses the following tools in its attacks:

  • DanBot — A first-stage remote access trojan (RAT) that uses DNS and HTTP-based communication mechanisms and provides basic remote access capability, including the abilities to execute arbitrary commands via cmd.exe and to upload and download files
  • DanDrop — A VBA macro embedded in an Excel XLS file used to drop DanBot
  • kl.ps1 — A PowerShell-based keylogger
  • Decrypt-RDCMan.ps1 — Part of the PoshC2 framework
  • Get-LAPSP.ps1 — A PowerView-based script from the PowerShell Empire framework

Password spraying, DNS tunneling, social engineering, and abuse of security testing frameworks are common tactics detected to have been in use by attackers targeting Middle Eastern organizations.

Impact

  • Information Disclosure
  • Accounts compromise
  • Possible disruption of Industrial Processes

Indicators of Compromise

IP(s) / Hostname(s)

  • 62.113.207[.]181
  • 144.217.149[.]61
  • 75.87.185[.]45
  • 62.113.196[.]37
  • 104.149.37[.]44
  • 198.50.152[.]162
  • 164.132.181[.]82


URLs

  • bsolutions-cloude[.]com
  • cybersecnet[.]co[.]za
  • cybersecnet[.]org
  • opendnscloud[.]com
  • dnscloudservice[.]com
  • dnscachecloud[.]com
  • web-traffic[.]info
  • web-statistics[.]info
  • online-analytic[.]com
  • excsrvcdn[.]co

Malware Hash (MD5/SHA1/SH256)

  • a8f68c928f82edd8a28c0fd25e207929a7dbce23
  • 9df776b9933fbf95e3d462e04729d074

Remediation

  • Block the threat indicators at their respective controls.
  • Do not respond to emails coming from untrusted sources.
  • Do not download email attachments coming from unexpected sources.
  • Always scan documents prior to downloading.
  • Implement Multi-factor authentication.
  • Conduct phishing awareness programs for employees.

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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