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Jim Walter

Jim Walter is a Senior Threat Researcher at SentinelOne focusing on evolving trends, actors, and tactics within the thriving ecosystem of cybercrime and crimeware. He specializes in the discovery and analysis of emerging cybercrime "services" and evolving communication channels leveraged by mid-level criminal organizations. Jim joined SentinelOne following ~4 years at a security start-up, also focused on malware research and organized crime. Previously, he spent over 17 years at McAfee/Intel running their Threat Intelligence and Advanced Threat Research teams.
Egregor RaaS Continues The Chaos With Cobalt Strike Rclone 1
labs
Crimeware

Egregor RaaS Continues the Chaos with Cobalt Strike and Rclone

Jim Walter / November 25, 2020

Egregor ransomware is one of the more aggressive and complex RaaS families to date, with password-protected payloads designed to evade analysis.

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Ranzy Ransomware   Better Encryption Among New Features Of ThunderX Derivative 5
labs
Crimeware

Ranzy Ransomware | Better Encryption Among New Features of ThunderX Derivative

Jim Walter / November 18, 2020

The Ranzy ransomware operators have learned from their mistakes and adapted quickly after ThunderX decryptors became publicly available.

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sentinelone

The Good, the Bad and the Ugly in Cybersecurity – Week 44

The Good, the Bad and the Ugly | 4 minute read
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sentinelone

The Good, the Bad and the Ugly in Cybersecurity – Week 42

The Good, the Bad and the Ugly | 5 minute read
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The FONIX RaaS   New Low Key Threat With Unnecessary Complexities 6
labs
Crimeware

The FONIX RaaS | New Low-Key Threat with Unnecessary Complexities

Jim Walter / October 6, 2020

FONIX RaaS uses four methods of encryption per file and leads victims (and affiliates) on a merry dance through multiple emails to obtain decryption.

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sentinelone

The Good, the Bad and the Ugly in Cybersecurity – Week 39

The Good, the Bad and the Ugly | 4 minute read
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Scams Phishing And Malware   Cyber Attacks Leveraging The COVID 19 CoronaVirus Pandemic 1
labs
Security & Intelligence

Threat Intel | Cyber Attacks Leveraging the COVID-19/CoronaVirus Pandemic

Jim Walter / September 4, 2020

At Sentinel Labs, we have been closely tracking adversarial behavior as it pertains to COVID-19/Coronavirus. To date, we have observed a significant number of malware campaigns, spam campaigns, and outright…

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Multi Platform SMAUG RaaS Aims To See Off Competitors 6
labs
Crimeware

Multi-Platform SMAUG RaaS Aims To See Off Competitors

Jim Walter / September 3, 2020

Raas (Ransomware-as-a-Service) continues to fuel the cybercrime economy. SMAUG offers Windows, Linux and macOS support among other unique features.

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sentinelone

The BLINDINGCAN RAT and Malicious North Korean Activity

From the Front Lines | 6 minute read
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sentinelone

The Good, the Bad and the Ugly in Cybersecurity – Week 34

The Good, the Bad and the Ugly | 4 minute read
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SentinelLabs

In the era of interconnectivity, when markets, geographies, and jurisdictions merge in the melting pot of the digital domain, the perils of the threat ecosystem become unparalleled. Crimeware families achieve an unparalleled level of technical sophistication, APT groups are competing in fully-fledged cyber warfare, while once decentralized and scattered threat actors are forming adamant alliances of operating as elite corporate espionage teams.

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