Archive - Jack’s Substack

Malicious Ukrainian themed DELTA Android Application Analysis

Reverse engineering a Ukrainian themed malicious Android application

Mar 30 •

Malicious DELTA themed Android App found in 2025

More malicious activity utilising DELTA themes from a suspected Russia-based threat actor

Mar 11 •

January 2025

PhaaS: The threat that keeps hitting inboxes

A case study for needing threat intelligence indicator democratisation

Jan 22 •

September 2024

Detecting a business email compromise (BEC) threat actor

Identifying an uncommon BEC threat actor

Sep 24, 2024 •

August 2024

Scraping ransomware leak sites which don't want to be

Using Python to bypass anti-scraping fingerprinting by ransomware leak sites such as RansomHub.

Aug 5, 2024 •

July 2023

Threat Intelligence Frameworks - Breaking the chains

Breaking the chains and moving away from the cyber kill chain once and for all?

Jul 24, 2023 •

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