CVE-2026-34621_PDF_SAMPLE

多阶段 Adobe Acrobat PDF JavaScript 样本技术分析 概述 本仓库发布了一篇以代码为中心的反向工程分析文章，针对一个嵌入了分阶段 Adobe Acrobat JavaScript 的恶意 PDF 样本。 该分析样本使用隐藏表单字段作为初始加载器，通过 Acrobat 流解码重建第二阶段 JavaScript 主体，执行环境侦察和 Acrobat 特定接口滥用，建立网络支持的暂存机制，最后解密、解压缩并执行延迟的第三阶段载荷。 本仓库的目标是防御性分析和文档记录。重点在于可观察行为、恢复的代码结构以及攻击链重建。 关键发现 该 PDF...

Strengthening supply chain security: Preparing for the next malware campaign

The open source ecosystem continues to face organized, adaptive supply chain threats that spread through compromised credentials and malicious package lifecycle scripts. The most recent example is the multi-wave Shai-Hulud campaign. While individual incidents differ in their mechanics and speed,...

GhostPoster Malware Found in 17 Firefox Add-ons with 50,000+ Downloads

A new campaign named GhostPoster has leveraged logo files associated with 17 Mozilla Firefox browser add-ons to embed malicious JavaScript code designed to hijack affiliate links, inject tracking code, and commit click and ad fraud. The extensions have been collectively downloaded over 50,000...

Dark Tequila: A Distilled Threat for Mexican Targets

Researchers have been tracking an ongoing malicious campaign targeting victims in Mexico, with a highly crafted tool built to steal financial information and login credentials for popular websites. Researchers at Kaspersky Lab said today that the campaign, dubbed Dark Tequila, and its supporting...

Dark Tequila Añejo

Dark Tequila is a complex malicious campaign targeting Mexican users, with the primary purpose of stealing financial information, as well as login credentials to popular websites that range from code versioning repositories to public file storage accounts and domain registrars. A multi-stage...

Google Kicks Out Largest Android Adware Family From The Play Store

With the rise in the mobile market, Adware has become one of the most prevalent mobile threats in the world. Adware has traditionally been used to aggressively push ads like banners or pop-ups on mobile screens to make money. The troublesome part is that Adware is now becoming trojanized and more...

Internet Explorer 8 Exploit Found in Watering Hole Campaign Targeting Chinese Dissidents

On March 16th, we discovered a premeditated waterhole campaign that hosts exploits and malware on websites frequented by a specific target group. In this case the target includes Chinese dissidents. For the attacker, this approach is highly attractive since it is very difficult to discover the...