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    REWTERZ THREAT ALERT – New SpeakUp Backdoor Infects Linux and macOS with Miners in East Asia

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    REWTERZ THREAT ALERT – New SpeakUp Backdoor Infects Linux and macOS with Miners in East Asia

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    • Remote SOC
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    March 15, 2023
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    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

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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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Rewterz
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REWTERZ THREAT ALERT – New SpeakUp Backdoor Infects Linux and macOS with Miners in East Asia

February 7, 2019

SEVERITY: Medium

CATEGORY: Emerging Threat

Analysis Summary


The backdoor SpeakUp connects to the command and control (C&C) server upon infection, to register the machine and exploits known vulnerabilities in six different Linux distributions. The initial infection vector is targeting the recently reported vulnerability in ThinkPHP and uses command injection techniques for uploading a PHP shell that serves and executes a Perl backdoor. It begins with exploiting CVE-2018-20062 for uploading a PHP shell by using a GET request. Then this shell executes commands sent via the “module” parameter in a query.

SpeakUp uses POST and GET requests over HTTP to communicate with its main C&C which is the compromised website of speakupomaha[.]com. The first POST packet sends a victim ID and more introductory information such as the current version of the installed script. SpeakUp also equips its backdoors with i (sic), a python script which allows the backdoor to scan and infect more Linux servers within its internal and external subnets. Apart from Brute Forcing other potential victims in the local network, the threat actors try to exploit the following Remote Code Execution vulnerabilities in the targeted servers:

a) CVE-2012-0874: JBoss Enterprise Application Platform Multiple Security Bypass Vulnerabilities

b) CVE-2010-1871: JBoss Seam Framework remote code execution

c) JBoss AS 3/4/5/6: Remote Command Execution (exploit)

d) CVE-2017-10271: Oracle WebLogic wls-wsat Component Deserialization RCE

e) CVE-2018-2894: Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware.

f) Hadoop YARN ResourceManager – Command Execution (exploit)

g) CVE-2016-3088: Apache ActiveMQ Fileserver File Upload Remote Code Execution Vulnerability.

A successful exploitation of one of the vulnerabilities will result in deploying the original ibus script on the exploited server. It has the ability to scan the surrounding network of an infected server and distribute the malware.

Impact


Code Execution

Mining of Cryptocurrency

Affected Products

Linux

MacOS

Indicators of Compromise


IP(s) / Hostname(s)



  • 67[.]209.177.163
  • 173[.]82.104.196
  • 5[.]196.70.86
  • 120[.]79.247.183
  • 5[.]2.73.127/lnsqqFE2jK/pprtnp153WWW.php
  • Speakupomaha[.]com/misc/ui/images/Indxe.php
  • Linuxservers[.]000webhostapp[.]com/hp.html linuxsrv134[.]xp3[.]biz

URLs

speakupomaha[.]com.

Malware Hash (MD5/SHA1/SH256)

  • 0a4e5831a2d3115acb3e989f0f660a6f
  • 0b5e1eb67be7c3020610b321f68375c1
  • 968d1906be7eb8321a3afac5fde77467
  • 074d7a4417d55334952d264c0345d885
  • f357f32d7c2ddfef4b5850e7506c532b
  • b6311bffcea117dceac5ccac0a243ae5
  • 2adf4e4512aaafab75e8411aa7121ffa
  • a73c7b777d31b0a8ef270809e2ed6510
  • 114cda60d215e44baeef22b7db0c64d5
  • 8f725fc5406ebf679c5c7ade3e8d5f70
  • 4a80a075c7c6b5e738a7f4b60b7b101f
  • e18749e404baec2aa29f4af001164d1b
  • 1a377b5d5d2162327f0706cc84427780
  • 1da94e156609d7e880c413a124bad004
  • 713260a53eff05ad44aad8d6899f1c6e
  • 36cda3c77ba380d6388a01aafcbaa6c7
  • 0f83482368343f5c811bac84a395d2c0
  • 8dd6cb5f33d25512805c70bd3db5f433
  • e4ca1e857034cbe0428d431c15ec8608
  • 36502273cee61825dc97d62a3dffe729
  • f16c5a6342ccc253b1de177d3fa310b1
  • 08d7674532cc226931570e6a99d5ba30
  • 279c4aa955085480f3ad0c19aa36a93b
  • f79be3df4cbfe81028040796733ab07f
  • a21a3d782d30b51515834a7bf68adc8e
  • c572a10ca12f3bd9783c6d576aa080fb
  • b60ec230644b740ca4dd6fd45059a4be
  • 5e6b6fcd7913ae4917b0cdb0f09bf539
  • ae875c496535be196449547a15205883
  • 068d424a1db93ec0c1f90f5e501449a3
  • 996e0c8190880c8bf1b8ffb0826cf30f

Remediation

  • Make sure to update all Linux distributions to a patched version against above-mentioned vulnerabilities.
  • Block the threat indicators at their respective controls.
  • Ensure close monitoring of all internal and external communications as well as activities within the network.



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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