Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
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Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
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Executive SummaryUnit 42 researchers recently discovered two separate campaigns targeting job-seeking activities linked to state-sponsored threat actors associated with the Democratic …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
SentinelOne is currently monitoring increased exploitation of CVE-2023-22518, a recently identified vulnerability in Atlassian’s Confluence Datacenter and Server software. We have observed multiple campaigns leveraging the bug to deploy new …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Threat hunting encompasses a range of techniques and approaches aimed at discovering anomalies, threats, and risks associated with attacker activities. In the early days, log review by diligent system administrators …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
This year has seen an explosion of infostealers targeting the macOS platform. Throughout 2023, we have observed a number of new infostealer families including MacStealer, Pureland, Atomic Stealer and RealStealer …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Key points from our research:
Around early-mid August, we noticed an increase in MacOS malware detections, specifically AdLoad and UpdateAgent in IronDome, in the education sector. This timing correlates with…XLoader is a long-running malware-as-a-service infostealer and botnet that has been around in some form or another since 2015. Its first macOS variant was spotted in 2021 and was notable …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Since the start of 2023, brand impersonation has become the center of many questions we receive from everyday network defenders. While at the start of the year we reported on …
Discover the intricate layers of a new sophisticated and persistent malware campaign targeting businesses in the LATAM region delivering the TOITOIN Trojan. Delve into the multi-stage attack methodology, from …
Using the Wiz Runtime Sensor, we have recently detected a new fileless attack targeting cloud workloads. The attack consists of Python code that loads an XMRig Miner directly into memory …
July 06, 2023
Joshua Miller, Pim Trouerbach, and the Proofpoint Threat Research Team
Key Takeaways TA453 continues to adapt its malware arsenal, deploying novel file types and targeting new operating…
During the week of February 20, 2023, Sophos X-Ops MDR team received two separate requests for threat hunts related to unusual activity in two customers’ Microsoft 365 (formerly Office 365) …
Recent reports from researchers at BitDefender and Elastic have exposed an active adversary deploying novel spyware, cross-platform backdoors and an open-source reconnaissance tool to compromise organizations with macOS devices in …
Since November 2022, the eSentire Threat Response Unit (TRU) has observed the resurgence of what we believe to be a malicious campaign targeting the manufacturing, commercial, and healthcare organizations. The …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Since December 2022, the eSentire Threat Response Unit (TRU) has observed Aurora Stealer malware infections in the manufacturing industry. It’s distributed via fake Google Ads for Notepad++ installer. Aurora Stealer …
In this intrusion, dated May 2023, we observed Truebot being used to deploy Cobalt Strike and FlawedGrace (aka GraceWire & BARBWIRE) resulting in the exfiltration of data and the deployment …
UPDATED: 1 June 2023 @ 1733 ET – Added shareable Huntress YARA rule for assistance in detection effortUPDATED: 1 June 2023 @ 2023 ET – Added Kostas community Sigma rule …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Recent weeks have seen a number of macOS-specific infostealers appear for sale in crimeware forums, including Pureland, MacStealer and Amos Atomic Stealer. Of these, Atomic Stealer has offered by far …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Executive summary
TEHTRIS Threat Hunters analyzed illicit cryptomining activity targeting Linux-based machines. The attack happened on one of our high interaction honeypots hosted in France in mid-January across a short …
February 15, 2024 update – On January 20, 2024, the US government conducted a disruption operation against infrastructure used by a threat actor we track as Forest Blizzard (STRONTIUM), a …
The scourge of ransomware attacks that has plagued Windows endpoints over the past half decade or so has, thankfully, not been replicated on Mac devices. With a few unsuccessful exceptions, …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
First introduced in July 2022, Icarus Stealer is an infostealer malware that uses an hVNC capability so that the threat actor can create a new hidden desktop to navigate through …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Since May 2022, eSentire’s Threat Response Unit (TRU) has observed 11 cases of Raspberry Robin infections. Although the initial access vector is an infected USB drive, however it’s unclear how …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
Redline Stealer is one of the most popular stealers being sold and used by cybercriminals. The command and control (C2) panel does not require an attacker to log in via …
On December 2, 2022, one of our 24/7 SOC Cyber Analysts escalated an incident involving the GootLoader malware at a pharmaceutical company. eSentire’s Threat Response Unit (TRU) responded quickly and …
We have observed multiple attacks targeting government organizations in Asia, all involving DLL sideloading – historically a favorite technique of China-based APT groups — as far back as 2013 and …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
On October 17, 2022, the Wordfence Threat Intelligence team began monitoring for activity targeting CVE-2022-42889, or “Text4Shell” on our network of 4 million websites. We started seeing activity targeting this …
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats …
In July 2022, during proactive threat hunting activities at a company in the media industry, Mandiant Managed Defense identified a novel spear phish methodology employed by the threat cluster tracked …
Key points
The Black Hat network is more unique and complex than a standard enterprise network due to the number and diversity of devices connected, the abundance of trainings and…Gootloader is a Malware-as-a-Service (MaaS) offering that is spread through Search Engine Optimization (SEO) poisoning to distribute malicious payloads, such as IcedID. Threat actors have begun using IcedID, a former …