The vulnerability of Microsoft SharePoint Server and Microsoft SharePoint Enterprise Server packages lies in the lack of measures taken to protect the structure of web pages, allowing attackers to execute spear-phishing attacks.

The vulnerability of Microsoft SharePoint Server and Microsoft SharePoint Enterprise Server packages is related to the lack of measures taken to protect the website structure. Exploiting this vulnerability can allow a malicious actor to perform a spear-phishing attack remotely...

The vulnerability of Microsoft Edge browser (based on Chromium) relates to information representation errors in the user interface, allowing attackers to perform spear-phishing attacks.

The vulnerability of Microsoft Edge based on Chromium is related to information representation errors in the user interface. Exploiting this vulnerability can allow a remote attacker to perform spear-phishing attacks...

PT-2025-24329

Name of the Vulnerable Software and Affected Versions Microsoft Windows versions prior to June 2025 Description An issue exists in the WebDAV module where external control of file names or paths in Internet Shortcut Files allows an unauthorized remote attacker to execute arbitrary code. The flaw...

A week in security (January 13 – January 19)

Last week on Malwarebytes Labs: iMessage text gets recipient to disable phishing protection so they can be phished The new rules for AI and encrypted messaging, with Mallory Knodel Lock and Code S06E01 Insurance company accused of using secret software to illegally collect and sell location data ...

Russian Star Blizzard Targets WhatsApp Accounts in New Spear-Phishing Campaign

The Russian threat actor known as Star Blizzard has been linked to a new spear-phishing campaign that targets victims' WhatsApp accounts, signaling a departure from its longstanding tradecraft in a likely attempt to evade detection. "Star Blizzard's targets are most commonly related to government...

The vulnerability of the Swift Mailer module in the Drupal CMS system, related to the use of dangerous methods or functions, allows attackers to exploit it.

The vulnerability of the Swift Mailer module in the Drupal CMS system is related to the use of dangerous methods or functions. Exploiting this vulnerability could allow a malicious actor to execute a spear-phishing attack remotely...

Russia-Linked Hackers Target Kazakhstan in Espionage Campaign with HATVIBE Malware

Russia-linked threat actors have been attributed to an ongoing cyber espionage campaign targeting Kazakhstan as part of the Kremlin's efforts to gather economic and political intelligence in Central Asia. The campaign has been assessed to be the work of an intrusion set dubbed UAC-0063 , which...

The vulnerability of the Mozilla Firefox browser and the Thunderbird email client, related to authentication procedures that allow attackers to carry out spear-phishing attacks

The vulnerability of Mozilla Firefox browser and Thunderbird email client is related to deficiencies in authentication procedures, resulting from incorrect display of the domain name in the address bar. Exploiting this vulnerability allows attackers to perform spear-phishing attacks remotely...

Python-Based NodeStealer Version Targets Facebook Ads Manager

In this blog entry, Trend Micro’s Managed XDR team discuss their investigation into how the latest variant of NodeStealer is delivered through spear-phishing attacks, potentially leading to malware execution, data theft, and the exfiltration of sensitive information via Telegram...

APT29 Hackers Target High-Value Victims Using Rogue RDP Servers and PyRDP

The Russia-linked APT29 threat actor has been observed repurposing a legitimate red teaming attack methodology as part of cyber attacks leveraging malicious Remote Desktop Protocol RDP configuration files. The activity, which has targeted governments and armed forces, think tanks, academic...

Earth Koshchei Coopts Red Team Tools in Complex RDP Attacks

APT group Earth Koshchei, suspected to be sponsored by the SVR, executed a large-scale rogue RDP campaign using spear-phishing emails, red team tools, and sophisticated anonymization techniques to target high-profile sectors...

Thai Officials Targeted in Yokai Backdoor Campaign Using DLL Side-Loading Techniques

Thai government officials have emerged as the target of a new campaign that leverages a technique called DLL side-loading to deliver a previously undocumented backdoor dubbed Yokai. "The target of the threat actors were Thailand officials based on the nature of the lures," Nikhil Hegde, senior...

The vulnerability of Microsoft Defender for Endpoint on Android operating systems, related to insufficient validation of input data, allows attackers to execute spearfishing attacks.

The vulnerability of Microsoft Defender for Endpoint on Android operating systems is related to insufficient validation of input data. Exploiting this vulnerability allows a malicious actor to perform spear-phishing attacks remotely...

Secret Blizzard Deploys Kazuar Backdoor in Ukraine Using Amadey Malware-as-a-Service

The Russian nation-state actor tracked as Secret Blizzard has been observed leveraging malware associated with other threat actors to deploy a known backdoor called Kazuar on target devices located in Ukraine. The new findings come from the Microsoft threat intelligence team, which said it observ...

The vulnerability of Microsoft Edge browser, related to information representation errors in the user interface, allows attackers to perform spear-phishing attacks.

The vulnerability of Microsoft Edge is related to information representation errors in the user interface. Exploiting this vulnerability can allow a remote attacker to perform spear-phishing attacks...

Hackers Leveraging Cloudflare Tunnels, DNS Fast-Flux to Hide GammaDrop Malware

The threat actor known as Gamaredon has been observed leveraging Cloudflare Tunnels as a tactic to conceal its staging infrastructure hosting a malware called GammaDrop. The activity is part of an ongoing spear-phishing campaign targeting Ukrainian entities since at least early 2024 that's design...

The vulnerability of the JetBrains YouTrack project management and task management software, related to incorrect data encoding, allows attackers to perform spear-phishing attacks.

The vulnerability of the JetBrains YouTrack project management tool is related to incorrect Punycode data encoding. Exploiting this vulnerability could allow attackers to perform brute-force attacks remotely...

ANEL and NOOPDOOR Backdoors Weaponized in New MirrorFace Campaign Against Japan

The China-linked threat actor known as MirrorFace has been attributed to a new spear-phishing campaign mainly targeting individuals and organizations in Japan since June 2024. The aim of the campaign is to deliver backdoors known as NOOPDOOR aka HiddenFace and ANEL aka UPPERCUT, Trend Micro said ...

The vulnerability of the Microsoft Dynamics 365 resource planning software lies in the lack of protective measures for the website structure, allowing attackers to execute a spear-phishing attack.

The vulnerability of the Microsoft Dynamics 365 resource planning software is related to the lack of measures taken to protect the website structure. Exploiting this vulnerability could allow a malicious actor to execute a spear-phishing attack remotely...

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird lies in improper restrictions on the displayed layers of the user interface, which allows attackers to perform spear-phishing attacks.

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to an improper limitation on the visually displayed layers of the user interface. Exploiting this vulnerability allows a malicious actor to perform spear-phishing attacks remotely...