PDF reader Archives

Winsage

November 21, 2025

5 Windows apps to install first on a new PC and what each one does for you

Every new Windows laptop presents a pristine interface, but users often encounter frustrations such as locating files, cumbersome multitasking, and needing assistance with certain formats. A curated selection of applications can streamline the user experience significantly. 1) Microsoft PowerToys enhances multitasking with features like FancyZones for window arrangement, batch renaming files, resizing images, and customizing keyboard shortcuts. 2) Everything by Voidtools simplifies the search process on Windows, allowing users to find files instantly with just a few letters typed. 3) 7 Zip manages zipped folders and unconventional formats, offering features for compressing, splitting files, and securing documents with passwords. 4) Bitwarden centralizes passwords and notes, providing a single sign-in and autofill feature that syncs across devices, helping users avoid weak password reuse. 5) SumatraPDF is a lightweight PDF reader that opens documents quickly and supports epub and mobi files, serving as a basic eBook reader. These applications alleviate daily annoyances on Windows and prioritize functionality over aesthetics.

Tech Optimizer

October 10, 2025

From infostealer to full RAT: dissecting the PureRAT attack chain

An investigation revealed that a Python-based infostealer campaign led to the deployment of PureRAT, a sophisticated remote access trojan (RAT). The campaign began with a phishing email containing a ZIP archive that included a legitimate PDF reader executable and a malicious DLL. The DLL executed a series of payloads, including a Python info-stealer that harvested sensitive data and exfiltrated it via the Telegram API. The attack progressed to a .NET executable, which employed techniques like process hollowing and evasion tactics to load additional payloads. The final payload, Mhgljosy.dll, was identified as PureRAT, which established an encrypted command-and-control (C2) channel and allowed for extensive control over the compromised host. The C2 server was traced to Vietnam, suggesting a connection to the PXA group. The malware's functionality included host fingerprinting, command execution, and potential access to sensitive information and resources. Indicators of compromise included specific file hashes, registry keys, and IP addresses associated with the C2 server.

AppWizard

September 19, 2025

4 apps you should use instead of Google Docs

The author experienced file management issues with Google Docs due to its lack of a folder system, leading to a search for alternatives. 1. Notion: Offers seamless transition from Google Docs, with essential formatting tools, auto-save, user-friendly sharing, and offline access. It is highly customizable but has a steep learning curve compared to Google Docs. 2. Obsidian: Focuses on privacy with local file storage by default, allowing offline access without internet. It offers cloud synchronization for flexibility but is ideal for users who prefer keeping documents off the cloud. 3. Simplenote: A simple app for creating notes and to-do lists with easy sharing and document pinning. It lacks a folder organization system, which may limit its use for extensive document collections. 4. WPS Office: A robust alternative that supports document creation, presentations, and spreadsheets, with a built-in PDF reader. Its interface resembles Microsoft Word, but it is owned by a Chinese company, raising some privacy concerns despite end-to-end encryption. The author also mentions Evernote and Google Keep as other options, with Evernote's free plan becoming less appealing and Google Keep being simpler but limited for extensive document needs.

AppWizard

July 9, 2025

Dangerous Android malware targets US banking apps – 50,000 people already affected, make sure you’re not next

A PDF reader app for Android, 'Document Viewer – File Reader', has been found to contain a banking trojan called Anatsa, introduced through a patch six weeks after its release. The app, published by 'Hybrid Cars Simulator, Drift & Racing', has over 50,000 downloads and specifically targets North American banking applications. Security researchers have noted a history of similar threats, with previous trojanized apps having significant download numbers. The Anatsa trojan scans for North American banking apps and overlays a deceptive interface to steal user credentials. Google has removed the app from the Play Store and advises users to uninstall it, conduct a system scan, and reset banking credentials. Google Play Protect provides automatic protection against malicious apps.

AppWizard

July 9, 2025

Android malware Anatsa infiltrates Google Play to target US banks

The Anatsa banking trojan has reappeared on Google Play as a PDF viewer app, accumulating over 50,000 downloads. It activates upon installation, targeting North American banking applications by presenting an overlay that allows unauthorized access, keylogging, and transaction automation. Researchers from Threat Fabric discovered that the app displays a fake notification about banking system maintenance to mask its activities. Anatsa has a history of infiltrating Google Play through various trojanized applications, with previous campaigns resulting in 300,000 downloads in November 2021, 30,000 in June 2023, and 150,000 in February 2024. In May 2024, Zscaler reported two new Anatsa applications on Google Play, achieving 70,000 downloads. The specific app identified is ‘Document Viewer – File Reader,’ published by ‘Hybrid Cars Simulator, Drift & Racing,’ which maintains a “clean” appearance until it builds a user base, after which malicious code is introduced via an update. Anatsa connects to a command-and-control server to monitor targeted applications. Google has removed the malicious app, advising users to uninstall it, scan their devices, and reset banking credentials. Users are encouraged to download apps only from reputable publishers and be cautious with permissions and reviews. Google Play Protect automatically protects users from known malicious apps.

AppWizard

April 24, 2025

Chrome for Android finally lets you view PDFs without leaving the browser

Chrome for Android has introduced a native PDF reader that allows users to view and annotate PDF files directly within the browser, eliminating the need for third-party applications. This feature is currently available on Android 15, with availability on earlier versions yet to be confirmed. Users can access various annotation tools, including a pen, highlighter, eraser, undo, redo, and visibility options, and can customize line widths and colors. The built-in search functionality enables users to locate specific text within documents. The feature was hinted at in February of the previous year and became operational in December, initially accessible only through flags for devices running Android 12 and later.