Groups and Tactics

Elastic Security Labs is providing an update to the REF2924 research published in December of 2022. This update includes malware analysis of the implants, additional findings, and associations with other intrusions.

Elastic Security Labs is tracking likely multiple on-net threat actors leveraging Exchange exploits, web shells, and the newly discovered SiestaGraph implant to achieve and maintain access, escalate privilege, and exfiltrate targeted data.

Elastic Security Labs outlines the steps collect and analyze the various stages of the REF4526 intrusion set. This intrusion set uses a creative approach of Unicode icons in Powershell scripts to install a loader, a dropper, and RAT implants.

Elastic Security Labs details the use of open source data collection and the Elastic Stack to analyze the ICEDID botnet C2 infrastructure.

The Elastic Security Labs team has been tracking REF2731, an 5-stage intrusion set involving the PARALLAX loader and the NETWIRE RAT.

In this research publication, we'll explore the LUNA attack pattern — a cross-platform ransomware variant.

In this research publication, we'll explore our analysis of the QBOT attack pattern — a full-featured and prolific malware family.

In this research piece, we explore BPFDoor — a backdoor payload specifically crafted for Linux in order to gain re-entry into a previously or actively compromised target environment.

The latest organization under the microscope of the LAPSUS$ group is Okta. Threat hunt for the recent breach targeting Okta users using these simple steps in Elastic