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Posts created by: Yu Fu

Detecting Popular Cobalt Strike Malleable C2 Profile TechniquesA pictorial representation of Cobalt Strike case studies using Malleable C2 profiles. The Palo Alto Networks and Unit 42 logos.
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Detecting Popular Cobalt Strike Malleable C2 Profile Techniques

  • By Durgesh Sangvikar, Matthew Tennis, Chris Navarrete, Yanhui Jia, Yu Fu and Nina Smith
  • June 27, 2023 at 3:00 PM

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6 min. read

Spike in LokiBot Activity During Final Week of 2022A pictorial representation of malicious email like LokiBot where a stylized bug pops out of an envelope
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Spike in LokiBot Activity During Final Week of 2022

  • By Chris Navarrete, Edouard Bochin, Durgesh Sangvikar, Lei Xu and Yu Fu
  • March 3, 2023 at 6:00 AM

18

8 min. read

Trending

  • Unit 42 Attack Surface Threat Research: Constant Change in Cloud Contributes to 45% of New High/Critical Exposures Per Month by Unit 42
  • Threat Group Assessment: Muddled Libra (Updated) by Unit 42
  • Wireshark Tutorial: Display Filter Expressions by Brad Duncan
  • Wireshark Tutorial: Changing Your Column Display by Brad Duncan
  • Threat Group Assessment: Turla (aka Pensive Ursa) by Unit 42
Cobalt Strike Analysis and Tutorial: Identifying Beacon Team Servers in the WildMalware conceptual image, covering topics such as Cobalt Strike Team Server, which can be abused by malware authors for malicious purposes
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Cobalt Strike Analysis and Tutorial: Identifying Beacon Team Servers in the Wild

  • By Durgesh Sangvikar, Chris Navarrete, Matthew Tennis, Yanhui Jia, Yu Fu and Siddhart Shibiraj
  • November 3, 2022 at 6:00 AM

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9 min. read

Zero-Day Exploit Detection Using Machine LearningConceptual image representing zero-day exploit detection using machine learning.
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Zero-Day Exploit Detection Using Machine Learning

  • By Jin Chen, Lei Xu, Andrew Guan, Zhibin Zhang and Yu Fu
  • September 16, 2022 at 6:00 AM

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10 min. read

Cobalt Strike Analysis and Tutorial: CS Metadata Encryption and DecryptionA conceptual image representing malware and its evasions.
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Cobalt Strike Analysis and Tutorial: CS Metadata Encryption and Decryption

  • By Chris Navarrete, Durgesh Sangvikar, Yu Fu, Yanhui Jia and Siddhart Shibiraj
  • July 13, 2022 at 6:00 AM

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9 min. read

Cobalt Strike Analysis and Tutorial: CS Metadata Encoding and DecodingA conceptual image that represents malware, including the malicious uses of Cobalt Strike and its metadata encoding algorithm covered here.
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Cobalt Strike Analysis and Tutorial: CS Metadata Encoding and Decoding

  • By Chris Navarrete, Durgesh Sangvikar, Yu Fu, Yanhui Jia and Siddhart Shibiraj
  • May 6, 2022 at 12:00 PM

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9 min. read

Cobalt Strike Analysis and Tutorial: How Malleable C2 Profiles Make Cobalt Strike Difficult to DetectA conceptual image representing malware, including the adversarial use of Cobalt Strike and its Malleable C2 profile discussed here.
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Cobalt Strike Analysis and Tutorial: How Malleable C2 Profiles Make Cobalt Strike Difficult to Detect

  • By Chris Navarrete, Durgesh Sangvikar, Andrew Guan, Yu Fu, Yanhui Jia and Siddhart Shibiraj
  • March 16, 2022 at 3:00 PM

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9 min. read

Another Apache Log4j Vulnerability Is Actively Exploited in the Wild (CVE-2021-44228) (Updated)A conceptual image representing a vulnerability, such as the Apache log4j remote code execution vulnerability discussed here, CVE-2021-44228.
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Another Apache Log4j Vulnerability Is Actively Exploited in the Wild (CVE-2021-44228) (Updated)

  • By Tao Yan, Qi Deng, Haozhe Zhang, Yu Fu, Josh Grunzweig, Mike Harbison and Robert Falcone
  • December 10, 2021 at 1:00 PM

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15 min. read

A Closer Look at the Web SkimmerA conceptual illustration representing malware
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A Closer Look at the Web Skimmer

  • By Jin Chen, Tao Yan, Taojie Wang and Yu Fu
  • November 9, 2020 at 6:00 AM

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7 min. read

Network Attack Trends: Attackers Leveraging High Severity and Critical Exploits (May-July 2020)The image illustrates the concept of cybersecurity trends, including network attack trends.
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Network Attack Trends: Attackers Leveraging High Severity and Critical Exploits (May-July 2020)

  • By Brock Mammen, Yue Guan and Yu Fu
  • September 15, 2020 at 6:00 AM

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8 min. read

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