Author

Seth Goodwin

Elastic


Articles

BITS and Bytes: Analyzing BITSLOTH, a newly identified backdoor

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.

Elastic catches DPRK passing out KANDYKORN

Elastic catches DPRK passing out KANDYKORN

Elastic Security Labs exposes an attempt by the DPRK to infect blockchain engineers with novel macOS malware.

Introducing the REF5961 intrusion set

Introducing the REF5961 intrusion set

The REF5961 intrusion set discloses three new malware families targeting ASEAN members. The threat actor leveraging this intrusion set continues to develop and mature their capabilities.

The DPRK strikes using a new variant of RUSTBUCKET

The DPRK strikes using a new variant of RUSTBUCKET

Watch out! We’ve recently discovered a variant of RUSTBUCKET. Read this article to understand the new capabilities we’ve observed, as well as how to identify it in your own network.

Initial research exposing JOKERSPY

Initial research exposing JOKERSPY

Explore JOKERSPY, a recently discovered campaign that targets financial institutions with Python backdoors. This article covers reconnaissance, attack patterns, and methods of identifying JOKERSPY in your network.

Elastic charms SPECTRALVIPER

Elastic charms SPECTRALVIPER

Elastic Security Labs has discovered the P8LOADER, POWERSEAL, and SPECTRALVIPER malware families targeting a national Vietnamese agribusiness. REF2754 shares malware and motivational elements of the REF4322 and APT32 activity groups.

Update to the REF2924 intrusion set and related campaigns

Update to the REF2924 intrusion set and related campaigns

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.

NETWIRE Dynamic Configuration Extraction

NETWIRE Dynamic Configuration Extraction

Elastic Security Labs discusses the NETWIRE trojan and is releasing a tool to dynamically extract configuration files.

SiestaGraph: New implant uncovered in ASEAN member foreign ministry

SiestaGraph: New implant uncovered in ASEAN member foreign ministry

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.

Exploring the REF2731 Intrusion Set

Exploring the REF2731 Intrusion Set

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

Detection rules for SIGRed vulnerability

Detection rules for SIGRed vulnerability

The SIGRed vulnerability impacts all systems leveraging the Windows DNS server service (Windows 2003+). To defend your environment, we recommend implementing the detection logic included in this blog post using technology like Elastic Security.

Doing time with the YIPPHB dropper

Doing time with the YIPPHB dropper

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.

ICEDIDs network infrastructure is alive and well

ICEDIDs network infrastructure is alive and well

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

Extracting Cobalt Strike Beacon Configurations

Extracting Cobalt Strike Beacon Configurations

Part 2 - Extracting configurations from Cobalt Strike implant beacons.

CUBA Ransomware Campaign Analysis

CUBA Ransomware Campaign Analysis

Elastic Security observed a ransomware and extortion campaign leveraging a combination of offensive security tools, LOLBAS, and exploits to deliver the CUBA ransomware malware.

LUNA Ransomware Attack Pattern Analysis

LUNA Ransomware Attack Pattern Analysis

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

Exploring the QBOT Attack Pattern

Exploring the QBOT Attack Pattern

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

Playing defense against Gamaredon Group

Playing defense against Gamaredon Group

Learn about the recent campaign of a Russia-based threat group known as Gamaredon Group. This post will review these details and provide detection strategies.

FORMBOOK Adopts CAB-less Approach

FORMBOOK Adopts CAB-less Approach

Campaign research and analysis of an observed FORMBOOK intrusion attempt.

Collecting and operationalizing threat data from the Mozi botnet

Collecting and operationalizing threat data from the Mozi botnet

The Mozi botnet is an ongoing malware campaign targeting unsecured and vulnerable networking devices. This post will showcase the analyst journey of collecting, analyzing, and operationalizing threat data from the Mozi botnet.

Collecting Cobalt Strike Beacons with the Elastic Stack

Collecting Cobalt Strike Beacons with the Elastic Stack

Part 1 - Processes and technology needed to extract Cobalt Strike implant beacons