Powershell – Page 2 – Computer Security Articles

Custom PowerShell RAT targets Germans seeking information about the Ukraine crisis

May 16, 2022 admin Germany, Powershell, Rat, Threat Intelligence, Ukraine

Credit to Author: Threat Intelligence Team| Date: Mon, 16 May 2022 10:00:00 +0000

Malwarebytes Threat Intelligence has uncovered an attack using the lure of information about the war in Ukraine to target people in Germany.

The post Custom PowerShell RAT targets Germans seeking information about the Ukraine crisis appeared first on Malwarebytes Labs.

MalwareBytes Security

Colibri Loader combines Task Scheduler and PowerShell in clever persistence technique

April 5, 2022 admin colibri, loader, Powershell, Threat Intelligence

Credit to Author: Threat Intelligence Team| Date: Tue, 05 Apr 2022 18:36:35 +0000

We discovered an interesting trick used by Colibri Loader to survive reboots that takes advantage of a legitimate command in PowerShell.

The post Colibri Loader combines Task Scheduler and PowerShell in clever persistence technique appeared first on Malwarebytes Labs.

Security Sophos

Reconstructing PowerShell scripts from multiple Windows event logs

March 29, 2022 admin 4104, forensics, Powershell, security operations, threat research

Credit to Author: Vikas Singh| Date: Tue, 29 Mar 2022 18:27:50 +0000

On the trail of malicious PowerShell artifacts too large to be contained in a single log? Help is on the way.

Security Sophos

Windows services lay the groundwork for a Midas ransomware attack

February 2, 2022 admin anydesk, dism, dismcore.dll, Midas, Powershell, ransomware, rapid response, teamviewer, threat research

Credit to Author: Andrew Brandt| Date: Tue, 25 Jan 2022 12:30:13 +0000

Attackers took two months to craft and install PowerShell scripts as services before deploying the ransomware

Security Sophos

How I learned to stop worrying and love ‘grey hat’ tools

February 25, 2020 admin cobalt strike, empire, evasion, hercules, hydra thc, kali, koadic, metasploit, nishang, Phantom, Powershell, shelter, SophosLabs Uncut, thefatrat, veilevasion

Credit to Author: Tad Heppner| Date: Tue, 25 Feb 2020 13:45:19 +0000

A comprehensive security solution needs a sense of subtlety: not all machine code lends itself to be classified easily as malicious. As with most things in life, there’s a grey area in malware detection that includes hacking tools, poorly designed or easily exploitable applications, or borderline adware that provides little benefit to the unfortunate user […]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/TR1pieWZO1k” height=”1″ width=”1″ alt=””/>

QuickHeal Security

STOP (Djvu) Ransomware: Ransom For Your Shady Habits!

January 15, 2020 admin _readme.txt, {1d6fc66e-d1f3-422c-8a53-c0bbcf3d900d}, {36a698b9-d67c-4e07-be82-0ec5b14b4df5}, crack software, cracked, djvu, encryption, fake apps, icacls, infostealer, keygen, malware, offline key, online key, Powershell, ransomware, salsa20, stop, syshelper, time trigger task, timetriggertask, Vidar, vilsel, Windows update

Credit to Author: Jayesh kulkarni| Date: Wed, 15 Jan 2020 14:13:09 +0000

With almost 200 extensions, STOP (djvu) ransomware can be said to be 2019’s most active and widespread ransomware. Although this ransomware was active a year before, it started its campaign aggressively in early 2019. To evade detection, it has been continuously changing its extensions and payloads. For earlier infections, data…

Security Sophos

Lemon_Duck PowerShell malware cryptojacks enterprise networks

October 1, 2019 admin Cryptojacking, cryptomining, EternalBlue, fileless, lemon_duck, Powershell, SMB, SophosLabs, SophosLabs Uncut

Credit to Author: rajeshnataraj| Date: Tue, 01 Oct 2019 04:01:09 +0000

SophosLabs are monitoring a significant spike in crypto mining attacks, which spread quickly across enterprise networks. Starting from a single infection, these attacks use a variety of malicious scripts that, eventually, turn an enterprise’s large pool of CPU resources into efficient cryptocurrency mining slaves. The threat actors behind these campaigns have been using an array […]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/jF91Bgk0dso” height=”1″ width=”1″ alt=””/>

Microsoft Security

Deep learning rises: New methods for detecting malicious PowerShell

September 3, 2019 admin AI and machine learning, cybersecurity, deep learning, Endpoint security, machine learning, Microsoft Defender ATP, Microsoft security intelligence, Powershell, Security Intelligence, Threat protection

Credit to Author: Eric Avena| Date: Tue, 03 Sep 2019 16:00:03 +0000

We adopted a deep learning technique that was initially developed for natural language processing and applied to expand Microsoft Defender ATP’s coverage of detecting malicious PowerShell scripts, which continue to be a critical attack vector.

The post Deep learning rises: New methods for detecting malicious PowerShell appeared first on Microsoft Security .