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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.
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The Good, the Bad and the Ugly in Cybersecurity – Week 14

The Good, the Bad and the Ugly | 5 minute read
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Avaddon RaaS   Breaks Public Decryptor Continues On Rampage 7
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Crimeware

Avaddon RaaS | Breaks Public Decryptor, Continues On Rampage

Jim Walter / April 1, 2021

Unbreakable encryption, a data leak site and threats of DDoS attacks, Avaddon has all the tricks of a modern RaaS. And now version 2 is on the way.

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The Good, the Bad and the Ugly in Cybersecurity – Week 11

The Good, the Bad and the Ugly | 4 minute read
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HelloKitty Ransomware Lacks Stealth But Still Strikes Home 3
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Crimeware

HelloKitty Ransomware Lacks Stealth, But Still Strikes Home

Jim Walter / March 8, 2021

HelloKitty lacks the stealth of Ryuk, REvil and Conti, but has still struck some notable targets, including CEMIGO. Ransomware overview and IoCs here.

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sentinelone

The Good, the Bad and the Ugly in Cybersecurity – Week 8

The Good, the Bad and the Ugly | 4 minute read
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Zeoticus 2.0   Ransomware With No C2 Required 4
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Crimeware

Zeoticus 2.0 | Ransomware With No C2 Required

Jim Walter / February 3, 2021

Zeoticus is a Windows-specific ransomware that can execute fully offline with no callback to a C2, making network activity detection rules redundant.

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sentinelone

The Good, the Bad and the Ugly in Cybersecurity – Week 5

The Good, the Bad and the Ugly | 4 minute read
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The Good, the Bad and the Ugly in Cybersecurity – Week 2

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 51

The Good, the Bad and the Ugly | 5 minute read
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The Good, the Bad and the Ugly in Cybersecurity – Week 48

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.

Recent Posts

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