Feb 08, 2025Ravie LakshmananArtificial Intelligence / Supply Chain Security Cybersecurity researchers have uncovered two malicious machine learning (ML) models on Hugging Face that leveraged an unusual technique of "broken" pickle files to evade detection. "The pickle files extracted from the mentioned PyTorch archives revealed the malicious Python content at the beginning of … [Read more...] about Malicious ML Models on Hugging Face Leverage Broken Pickle Format to Evade Detection
Evade
Neglected Domains Used in Malspam to Evade SPF and DMARC Security Protections
Cybersecurity researchers have found that bad actors are continuing to have success by spoofing sender email addresses as part of various malspam campaigns. Faking the sender address of an email is widely seen as an attempt to make the digital missive more legitimate and get past security mechanisms that could otherwise flag it as malicious. While there are safeguards such as … [Read more...] about Neglected Domains Used in Malspam to Evade SPF and DMARC Security Protections
VEILDrive Attack Exploits Microsoft Services to Evade Detection and Distribute Malware
Nov 06, 2024Ravie LakshmananSaaS Security / Threat Detection An ongoing threat campaign dubbed VEILDrive has been observed taking advantage of legitimate services from Microsoft, including Teams, SharePoint, Quick Assist, and OneDrive, as part of its modus operandi. "Leveraging Microsoft SaaS services — including Teams, SharePoint, Quick Assist, and OneDrive — the attacker … [Read more...] about VEILDrive Attack Exploits Microsoft Services to Evade Detection and Distribute Malware
New Grandoreiro Banking Malware Variants Emerge with Advanced Tactics to Evade Detection
New variants of a banking malware called Grandoreiro have been found to adopt new tactics in an effort to bypass anti-fraud measures, indicating that the malicious software is continuing to be actively developed despite law enforcement efforts to crack down on the operation. "Only part of this gang was arrested: the remaining operators behind Grandoreiro continue attacking … [Read more...] about New Grandoreiro Banking Malware Variants Emerge with Advanced Tactics to Evade Detection
Hackers Created Rogue VMs to Evade Detection in Recent MITRE Cyber Attack
May 24, 2024NewsroomEndpoint Security / Threat Intelligence The MITRE Corporation has revealed that the cyber attack targeting the not-for-profit company towards late December 2023 by exploiting zero-day flaws in Ivanti Connect Secure (ICS) involved the actor creating rogue virtual machines (VMs) within its VMware environment. "The adversary created their own rogue VMs within … [Read more...] about Hackers Created Rogue VMs to Evade Detection in Recent MITRE Cyber Attack
Darcula Phishing Network Leveraging RCS and iMessage to Evade Detection
A sophisticated phishing-as-a-service (PhaaS) platform called Darcula has set its sights on organizations in over 100 countries by leveraging a massive network of more than 20,000 counterfeit domains to help cyber criminals launch attacks at scale. "Using iMessage and RCS rather than SMS to send text messages has the side effect of bypassing SMS firewalls, which is being used … [Read more...] about Darcula Phishing Network Leveraging RCS and iMessage to Evade Detection
Hackers Abusing GitHub to Evade Detection and Control Compromised Hosts
Dec 19, 2023The Hacker NewsSoftware Security / Threat intelligence Threat actors are increasingly making use of GitHub for malicious purposes through novel methods, including abusing secret Gists and issuing malicious commands via git commit messages. "Malware authors occasionally place their samples in services like Dropbox, Google Drive, OneDrive, and Discord to host second … [Read more...] about Hackers Abusing GitHub to Evade Detection and Control Compromised Hosts
ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers
Oct 12, 2023Newsroom The threat actors behind ShellBot are leveraging IP addresses transformed into its hexadecimal notation to infiltrate poorly managed Linux SSH servers and deploy the DDoS malware. "The overall flow remains the same, but the download URL used by the threat actor to install ShellBot has changed from a regular IP address to a hexadecimal value," the AhnLab … [Read more...] about ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers
FormBook Malware Spreads via Malvertising Using MalVirt Loader to Evade Detection
Feb 06, 2023Ravie LakshmananMalvertising / Data Safety An ongoing malvertising campaign is being used to distribute virtualized .NET loaders that are designed to deploy the FormBook information-stealing malware. "The loaders, dubbed MalVirt, use obfuscated virtualization for anti-analysis and evasion along with the Windows Process Explorer driver for terminating processes," … [Read more...] about FormBook Malware Spreads via Malvertising Using MalVirt Loader to Evade Detection
New BLISTER Malware Using Code Signing Certificates to Evade Detection
Cybersecurity researchers have disclosed details of an evasive malware campaign that makes use of valid code signing certificates to sneak past security defenses and stay under the radar with the goal of deploying Cobalt Strike and BitRAT payloads on compromised systems. The binary, a loader, has been dubbed "Blister" by researchers from Elastic Security, with the malware … [Read more...] about New BLISTER Malware Using Code Signing Certificates to Evade Detection