Threat Advisory/Analysis Archives

A pictorial representation of an APT such as Turla or Pensive Ursa.

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Threat Group Assessment: Turla (aka Pensive Ursa)

By Unit 42
September 15, 2023 at 6:00 AM

14 min. read

Pictorial representation of a threat actor like Muddled Libra

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Threat Group Assessment: Muddled Libra (Updated)

By Kristopher Russo, Austin Dever and Amer Elsad
September 15, 2023 at 6:00 AM

11 min. read

A pictorial representation of the Mallox ransomware gang. A hand offers money to another hand holding keys. In the background is a computer screen with the biohazard symbol on it.

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Threat Group Assessment: Mallox Ransomware

By Lior Rochberger and Shimi Cohen
July 20, 2023 at 10:15 AM

10 min. read

A conceptual image illustrating the concept of an adversary, underscoring the ethical discussion around red-teaming tools such as Brute Ratel

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When Pentest Tools Go Brutal: Red-Teaming Tool Being Abused by Malicious Actors

By Mike Harbison and Peter Renals
July 5, 2022 at 6:00 AM

15 min. read

A conceptual image representing geopolitical cyber activity, such as what has been associated with Russia-Ukraine

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Russia-Ukraine Cyberattacks (Updated): How to Protect Against Related Cyberthreats Including DDoS, HermeticWiper, Gamaredon, Website Defacement, Phishing and Scams

By Unit 42
February 22, 2022 at 3:00 PM

331

13 min. read

A conceptual image representing ransomware, such as the ransomware families discussed in this post.

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Ransomware Families: 2021 Data to Supplement the Unit 42 Ransomware Threat Report

By Guang Qing He, Cecil Liu, Aiden Huang and Royce Lu
July 28, 2021 at 6:00 AM

7 min. read

The Conti ransomware gang gets an overview.

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Conti Ransomware Gang: An Overview

By Richard Hickman
June 18, 2021 at 6:00 AM

5 min. read

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Inside TDrop2: Technical Analysis of new Dark Seoul Malware

By Josh Grunzweig
November 23, 2015 at 5:00 PM

10 min. read

Updated PClock Ransomware Still Comes Up Short

By Josh Grunzweig
September 29, 2015 at 12:00 PM

6 min. read

Unit 42 Identifies New DragonOK Backdoor Malware Deployed Against Japanese Targets

By Jen Miller-Osborn and Josh Grunzweig
April 14, 2015 at 1:31 PM

8 min. read

Android Installer Hijacking Vulnerability Could Expose Android Users to Malware

By Zhi Xu
March 24, 2015 at 5:00 AM

7 min. read

Filmkan: Mysterious Turkish Botnet Grows Through Facebook

By Ryan Olson
February 5, 2015 at 9:05 AM

8 min. read

Analysis: CryptoWall 3.0, Dyre and I2P

By Ryan Olson
February 1, 2015 at 8:00 PM

3 min. read

Newest CTB-Locker Campaign Bypasses Legacy Security Products

By Tomer Bar
January 28, 2015 at 12:45 PM

3 min. read

Tracking New Ransomware CryptoWall 2.0

By Ryan Olson
October 22, 2014 at 4:50 PM

4 min. read

Category: Threat Advisory/Analysis

Threat Group Assessment: Turla (aka Pensive Ursa)

Threat Group Assessment: Muddled Libra (Updated)

Threat Group Assessment: Mallox Ransomware

When Pentest Tools Go Brutal: Red-Teaming Tool Being Abused by Malicious Actors

Russia-Ukraine Cyberattacks (Updated): How to Protect Against Related Cyberthreats Including DDoS, HermeticWiper, Gamaredon, Website Defacement, Phishing and Scams

Ransomware Families: 2021 Data to Supplement the Unit 42 Ransomware Threat Report

Conti Ransomware Gang: An Overview

Inside TDrop2: Technical Analysis of new Dark Seoul Malware

Updated PClock Ransomware Still Comes Up Short

Unit 42 Identifies New DragonOK Backdoor Malware Deployed Against Japanese Targets

Android Installer Hijacking Vulnerability Could Expose Android Users to Malware

Filmkan: Mysterious Turkish Botnet Grows Through Facebook

Analysis: CryptoWall 3.0, Dyre and I2P

Newest CTB-Locker Campaign Bypasses Legacy Security Products

Tracking New Ransomware CryptoWall 2.0

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