Google is tightening its policies on sideloading practices, allowing app installations only from verified developers to enhance user security and reduce risks associated with malicious software. The company has removed numerous harmful applications and accounts to combat the exploitation of its ecosystem. Cybercriminals are replicating popular applications like Google, YouTube, and WhatsApp to deceive users into downloading malicious software, which often masquerades as “mod” or “pro” versions. These counterfeit apps can install the Arsink Remote Access Trojan (RAT), which allows hackers to control devices, record audio, harvest personal information, and perform unauthorized actions. The Arsink operation has affected tens of thousands of victims across approximately 143 countries. Users are advised to avoid installing apps from messengers, online forums, or direct links and to use official app stores instead. Google confirms that the RAT is not infecting Play Store apps and encourages users to keep Play Protect enabled.
DoubleVerify has raised concerns about a mobile scam involving the hijacking of dormant Android developer accounts, referred to as "zombie" accounts, which are exploited to publish fraudulent gaming applications on Google Play. This new tactic allows fraudsters to bypass automated checks due to the accounts' history of legitimate activity. The fraudulent apps generate invalid traffic, drain advertiser budgets, and excessively consume device battery power. DoubleVerify has identified unusual traffic patterns, such as surges at early morning hours, which do not align with typical gaming behavior, indicating the presence of bot clusters generating ad requests. Specific examples include dormant accounts that suddenly shifted to publishing gaming apps after years of inactivity. The reliance on developer history as a trust signal poses risks for advertisers, as it can lead to distorted campaign measurements and brand risks. DoubleVerify advocates for real-time behavioral analysis to enhance detection and protection against these threats.
In Novorossiysk, Russia, students are mandated to install the state-backed MAX messaging app to avoid exclusion from winter examinations, part of a broader initiative to shift communication to this platform. This reflects a trend in Russia where the government promotes state-sanctioned IT services, similar to efforts seen in other authoritarian regimes. MAX is compared unfavorably to WeChat, which has a robust ecosystem and a large user base, while MAX struggles to gain traction in a smaller Russian market. Previous Russian efforts at creating sovereign messaging apps, like TamTam and ICQ New, have failed. Laws now require communication through MAX, raising concerns about privacy and security. Despite initial resistance, there is a potential for MAX to become a communication staple in Russia if alternative platforms are restricted. In Iran, the state-run super app Rubika has faced public resistance, similar to the skepticism surrounding MAX in Russia as it may facilitate state censorship.
A malware strain known as Android.Phantom is being distributed through popular titles and unofficial app sources, operating silently alongside games to conduct click fraud. The malware can mimic user behavior, interact with ads through automated clicks, and establish peer-to-peer connections to allow remote controllers to interact with the user's screen in real time. It is recommended to avoid installing apps from third-party stores to reduce the risk of encountering malicious software.
Threema is a Swiss messaging service founded in 2012, which now has over 12 million users and approximately 8,000 organizations globally. The platform's ownership has recently changed to Comitis Capital GmbH. Threema uses a unique approach to user identity by assigning a random eight-digit ID instead of requiring personal information like phone numbers or email addresses. Messages are stored locally and deleted from servers after delivery, enhancing privacy. It operates on a paid model with a one-time fee, supports anonymous payments, and employs high-grade cryptography for security. Users can send text and voice messages, share files up to 100 MB, and conduct end-to-end encrypted voice and video calls. Threema targets individuals and organizations prioritizing privacy and data protection, while it may not appeal to those seeking free apps or cloud-based chat history. Key features include end-to-end encryption, QR-based contact verification, and local group management capabilities.
Senator James Lankford has requested the White House to consider banning WeChat from U.S. app stores due to concerns about its use by Chinese criminal organizations for activities like drug trafficking and money laundering. WeChat, owned by Tencent Holdings Ltd., has been identified as a key tool for coordinating these criminal networks. U.S. law enforcement currently lacks access to WeChat's encrypted communications, complicating investigations. This request follows a previous attempt by the Trump administration to ban WeChat, which was deemed unconstitutional. The Biden administration has since conducted a national security assessment and enacted the Protecting Americans from Foreign Adversary Controlled Applications Act, which allows the president to blacklist Chinese applications like WeChat. The Pentagon has already blacklisted Tencent for its ties to Chinese military companies. Recent criminal activities linked to WeChat include a case where a Chinese national was charged with murder on an illegal marijuana farm. Lankford urges the designation of WeChat as a "covered company" to enhance U.S. national security and assist law enforcement against Chinese criminal networks.
The term “not a virus” is used by antivirus software to indicate that a file does not match known malware signatures but still triggers a detection. This means the file is not automatically blocked or confirmed as a threat; the alert highlights something unusual, leaving the decision to the user. Alerts typically arise when software exhibits behavior associated with increased risk, despite lacking clear evidence of malicious intent. Malware is specifically designed to inflict harm, while files labeled “not a virus” may perform actions that raise security concerns but are not classified as harmful. Antivirus programs identify threats through signature detection and heuristic behavior-based detection. Legitimate programs, such as system utilities, download managers, and game cheats, can inadvertently trigger “not a virus” alerts. Common types of detections include adware, riskware, and potentially unwanted applications (PUA). The primary security risk of “not a virus” files is exposure rather than direct attacks, and privacy concerns often arise from data collection by these programs. If an antivirus detects “not a virus,” users should identify the file, review recent changes, compare detections, and decide whether to keep or remove it. To reduce unwanted alerts, users should download from official sources, use custom installation options, and remove unused software.
MobiFlix is a video-on-demand streaming application available for Fire TV and Android TV/Google TV devices, offering a vast library of movies and TV shows without subscriptions. It features thousands of titles across various genres, working subtitles, full-screen viewing, and streaming quality up to 1080p. Users may experience some buffering and playback issues, and account registration is required for additional features like favorites. MobiFlix must be sideloaded, as it is not available in mainstream app stores. The app's interface allows easy navigation between movies, TV shows, and genres, with organized sections for user convenience. While registration is not mandatory, it can enhance the user experience. The app is free to use, has passed a virus scan with no malicious files detected, but may distribute copyrighted content without proper licensing, raising legal concerns. A VPN is recommended for privacy while using the app.
