PDF attachments Archives

AppWizard

July 3, 2025

Fake Apps, AI Scams Drive 151% Android Malware Spike, Smishing Grows 692%, Spyware Quadruples

Android malware has surged by 151% since the beginning of the year, with a notable 147% increase in spyware in 2025. Spyware activity peaked in February and March, reaching nearly four times the baseline. Smishing attacks via SMS increased by 692% between April and May. Banking trojans and spyware are increasingly hidden in seemingly legitimate applications, such as fake loan services. Over 30% of Android devices run outdated software lacking security patches, exposing users to vulnerabilities. Cybercriminals are developing interconnected operations that target sensitive user data. Google Play Protect is not fully effective, and users are advised to download apps only from official sources, review app permissions, deny unnecessary notification access, keep software updated, and use trusted mobile security apps.

Winsage

May 4, 2025

Do Not Open This PDF On A Microsoft Windows PC

Microsoft has warned about the increasing use of PDF attachments in cyberattacks, particularly during the U.S. tax season. Attackers have been using PDFs with embedded links that redirect users to counterfeit pages, such as a fake DocuSign site. TrustWave SpiderLabs has identified a new campaign involving a fake payment SWIFT copy that leads to a malicious PDF containing obfuscated JavaScript, which downloads a script that conceals the RemcosRAT payload using steganography. This technique involves hiding links within images, making them difficult to detect. The latest attacks begin with phishing emails containing malicious PDFs that direct victims to harmful webpages, facilitating the delivery of RemcosRAT, a trojan that allows remote control of compromised systems. Users are advised to be cautious of emails labeled “SWIFT Copy” and to delete suspicious emails immediately.