William MacArthur

William MacArthur has extensive experience in dealing with cyber threats. He has been involved in many key roles in numerous high-profile investigations. These included identifying victims of domain shadowing, sinkholing command and control domains for Flame Malware, suspending hundreds of thousands of malicious domains, investigating phishing attacks, cleaning up compromised servers, and mitigating large-scale DDoS attacks.
Blog

InQuest Presents "The Twelve Days of Maliciousness"

12.06.2023
Darren Spruell
holidays malware threat intelligence
a lone figure standing in front of a large screen displaying classified information
Blog

Threat Sequencing from the Darkside

11.30.2023
William MacArthur
FileTAC threat intelligence threat sequencing
Blog

Ukraine CyberWar Overview

04.07.2022
Nick Chalard
Malware bazaar and InQuest logos
Blog

InQuest & MalwareBazaar Integration

03.31.2021
William MacArthur
Deep File Inspection® Labs malware analysis threat hunting
Online preview not available notification
Blog

IQ-FA009:QBot OOXML

09.02.2020
William MacArthur
OSINT QBot threat hunting
Threat score dashboard
Blog

IQ-FA004: Multiple Actors Abusing New Macro Methods

05.18.2020
William MacArthur
all flash alerts v4 macro
MS Excel Thumbnail
Blog

ZLoader 4.0 Macrosheets Evolution

05.06.2020
Amirreza Niakanlahiji
Deep File Inspection® malware analysis threat hunting
Face Mask on Cat
Blog

COVID-19 Scare Tactics: Want to buy some masks?

03.21.2020
William MacArthur
Labs open source OSINT threat hunting
Blog

Ransomware in Your Stocking

12.24.2019
William MacArthur
Deep File Inspection® InQuest OSINT ransomware
Blog

Holiday Blog: Tis' the Season

11.26.2019
William MacArthur
holidays threat intelligence

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