Category: Malware Analysis
Articles tagged Malware Analysis

Beyond the wail: deconstructing the BANSHEE infostealer
The BANSHEE malware is a macOS-based infostealer that targets system information, browser data, and cryptocurrency wallets.

BITS and Bytes: Analyzing BITSLOTH, a newly identified backdoor
Elastic Security Labs identified a novel Windows backdoor leveraging the Background Intelligent Transfer Service (BITS) for C2. This malware was found during a recent activity group tracked as REF8747.

Dipping into Danger: The WARMCOOKIE backdoor
Elastic Security Labs observed threat actors masquerading as recruiting firms to deploy a new malware backdoor called WARMCOOKIE. This malware has standard backdoor capabilities, including capturing screenshots, executing additional malware, and reading/writing files.

Globally distributed stealers
This article describes our analysis of the top malware stealer families, unveiling their operation methodologies, recent updates, and configurations. By understanding the modus operandi of each family, we better comprehend the magnitude of their impact and can fortify our defences accordingly.

Spring Cleaning with LATRODECTUS: A Potential Replacement for ICEDID
Elastic Security Labs has observed an uptick in a recent emerging loader known as LATRODECTUS. This lightweight loader packs a big punch with ties to ICEDID and may turn into a possible replacement to fill the gap in the loader market.

Dissecting REMCOS RAT: An in-depth analysis of a widespread 2024 malware, Part Four
In previous articles in this multipart series, malware researchers on the Elastic Security Labs team decomposed the REMCOS configuration structure and gave details about its C2 commands. In this final part, you’ll learn more about detecting and hunting REMCOS using Elastic technologies.

Dissecting REMCOS RAT: An in-depth analysis of a widespread 2024 malware, Part Three
In previous articles in this multipart series, malware researchers on the Elastic Security Labs team dove into the REMCOS execution flow. In this article, you’ll learn more about REMCOS configuration structure and its C2 commands.

Dissecting REMCOS RAT: An in-depth analysis of a widespread 2024 malware, Part Two
In the previous article in this series on the REMCOS implant, we shared information about execution, persistence, and defense evasion mechanisms. Continuing this series we’ll cover the second half of its execution flow and you’ll learn more about REMCOS recording capabilities and communication with its C2.

Dissecting REMCOS RAT: An in-depth analysis of a widespread 2024 malware, Part One
This malware research article describes the REMCOS implant at a high level, and provides background for future articles in this multipart series.

500ms to midnight: XZ A.K.A. liblzma backdoor
Elastic Security Labs is releasing an initial analysis of the XZ Utility backdoor, including YARA rules, osquery, and KQL searches to identify potential compromises.

Ransomware in the honeypot: how we capture keys with sticky canary files
This article describes the process of capturing encryption keys from ransomware using Elastic Defend ransomware protection.

Introduction to Hex-Rays decompilation internals
In this publication, we delve into Hex-Rays microcode and explore techniques for manipulating the generated CTree to deobfuscate and annotate decompiled code.