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    Expected cyber-crime techniques for 2019

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    March 15, 2023
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    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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    Expected cyber-crime techniques for 2019

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    • Remote SOC
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    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.

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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 […]

    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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Expected cyber-crime techniques for 2019

November 26, 2018

Sophos Lab has released a threat report covering expected modes of cyber-attacks in 2019.

 

 

Release Date: 26th November 2018

 

 

Cyber attackers are successfully evading detection on Windows computers by abusing legitimate admin tools commonly found on the operating system.

 

This is a pivotal finding of the SophosLabs 2019 Threat Report, which traces how the technique has risen from the fringes of the cybercriminal playbook to become a common feature in a growing number of cyber-attacks for the upcoming year.

 

Known in security parlance as ‘living off the Land’ or ‘LoL’ because it avoids the need to download dedicated tools, this technique of cyber-attack seems to be interested in targeting PowerShell, a powerful command line shell that ships by default on all recent Windows computers even though few users have heard of it.

 

Alternatives include Windows Scripting Host (WScript.exe), the Windows Management Instrumentation Command line (WMIC), as well as popular external tools such as PsExec and WinSCP.

 

It’s a simple strategy that makes detection a puzzle. Removing the tools is an option but comes with disadvantages few admins would be happy with, notes the report:

 

“PowerShell is also an integral component of tools that help administrators manage networks

 of almost any size, and as a result, must be present and must be enabled in order for those

admins to be able to do things like, for example, push group policy changes”.

 

Attackers, of course, know this and often feel brazen enough to chain together a sequence of scripting and command interfaces, each running in a different Windows process.

 

 

ATTACK VECTOR

 

 

According to SophosLabs, attacks might start with a malicious JavaScript attachment, in turn invoking wscript.exe, before finally downloading a custom PowerShell script. Defenders face a challenge:

 

“With a wide range of file types that include several “plain text” scripts, chained in no particular order and without any predictability, the challenge becomes how to separate the normal operations of a computer from the anomalous behavior of a machine in the throes of a malware infection”.

 

 

TYPES OF ATTACKS

 

Macro attacks 2.0

 

 

Meanwhile, attackers show no signs of giving up on new variations on Microsoft Office macro attacks, another route to launch exploits without the need for conventional executable.

 

In recent years, protections such as disabling macros inside documents or using preview mode have blunted this technique.

 

Unfortunately, attackers have developed techniques to persuade people to disable these using macro builder tools that package Office, Flash, and other exploits within a document that throws up sophisticated social engineering prompts.

 

Compounding this, cybercriminals have refreshed their older stock of software flaws in favor of more dangerous and recent equivalents – SophosLabs’ analysis of malicious documents found that only 3% of exploits inside builders date from years earlier than 2017.

 

With well-used filetypes now blocked or monitored by endpoint security, the trend is to use more exotic filetypes to launch attacks, especially apparently innocuous ones that can be called from a Windows shell such as .cmd (Command File) .cpl (Control Panel), .HTA (Windows Script Host), .LNK (Windows Shortcut), and .PIF (Program Information File).

 

 

Lateral Movement of Malware

 

 

The EternalBlue exploit (CVE–2017-0144) has surprisingly become a popular staple for malware writers, despite Microsoft issuing a patch in advance of its first use by WannaCry in May 2017.

 

Cryptominers have been enthusiastic users of EternalBlue, using it to move laterally through networks to infect as many machines as possible.

 

Attackers combining these innovations – Windows LoL tools, macro attacks, novel exploits and crypto-mining – represents a challenge because they often confound the assumptions of defenders.

 

Their uptake of these more complex and esoteric approaches has been driven, ironically, by the success of the cybersecurity industry at curbing traditional malware.

 

Concludes Sophos CTO, Joe Levy:

“We expect we’ll eventually be left with fewer, but smarter and stronger, adversaries”.

 

 

 

 

Source:

Cybercriminal techniques – SophosLabs 2019 Threat Report

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