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Trojans

Dive into the treacherous world of Trojans in our specialized “Trojans” category at BugsFighter.com. Named after the deceptive Trojan Horse of ancient mythology, these malicious programs disguise themselves as harmless software to infiltrate your system, unleashing harmful effects such as data theft, system damage, and unauthorized access to your devices. Our in-depth guides and articles provide critical information on identifying, removing, and defending against Trojans. Learn about the latest Trojan threats, the mechanics of their operations, and the best practices for securing your digital environments. Whether you’re a home user or managing an enterprise network, arm yourself with the knowledge to protect your systems against these cunning adversaries.

How to remove S.O.V.A. Banking Trojan (Android)

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S.O.V.A. is a banking trojan virus designed to extract finance-related information from Android devices. Specifically, it was spotted to do so on devices ranging from 7 to 11 Android versions. While being distributed under the disguise of ostensibly legitimate software, the sneaky trojan demands users to grant a number of device permissions. If such permissions are eventually given, the trojan will become capable of reading the device's screen and simulating fake log-in windows to bait users into entering their credentials. As mentioned, the main target of S.O.V.A. is banking information, which means it is likely the trojan will try to collect information from banking applications, cryptocurrency wallets, and other places related to finance. Due to the keylogging abilities, the trojan can record all the typed keystrokes and abuse them for stealing accounts or performing unauthorized money transactions. In addition, it was also observed that S.O.V.A. has access to managing SMS messages and displaying various pop-ups. Allowing such malware to operate for too long may indeed lead to severe privacy issues and potential loss of finance. On top of that, the S.O.V.A. banking trojan is still considered under development and is expected to acquire more features (performing DDoS attacks, operating as screen-locking ransomware, impeding 2FAs (Two-Factor Authentications), and so forth) in future updates. Thus, if you suspect your Android is under the affection of this or similar infection, follow our guidelines below to remove it and ensure further protection against such threats.

How to remove Conteban Trojan

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Conteban is a remote-access trojan that, upon successful Infiltration, manipulates system features to run malicious actions on it. While the actual purpose of this virus remains unclear, malware of such tends to cause chain infections. This means that Conteban may act as a "backdoor" to bring other viruses, such as ransomware, along the way. Ransomware is a devastating malicious software that usually encrypts system stored data and blackmails victims into paying money for its return. In addition, many developers behind trojan infections also seek the extraction of valuable information (e.g. passwords, log-ins, banking credentials, etc.). This data can therefore be misused to perform fraudulent financial operations, putting users' funds and privacy at significant risk. Sometimes, however, there is software mistakenly tagged as Trojan-Win32/Conteban by various antivirus engines, including native Windows Defender. These false positives happen pretty often and may occur while launching or installing a third-party file downloaded from the web. If you suspect your system to be actually infected, or you doubt the trustworthiness of the file downloaded, we recommend you use our guide to make sure nothing threatens your PC.

How to remove Exobot Trojan (Android)

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Also known as Exo Android Bot, Exobot is a dangerous and highly-disruptive piece of malicious software designed to infiltrate Android devices. Exobot is similar to functions carried out by many banking trojans. In essence, it settles within a system and performs a number of phishing actions aimed at extracting valuable information from users (e.g. bank card credentials; passwords, log-ins, and even identity information). It does so by accessing Accessibility Services and manipulating an infected device through WiFi or Mobile networks. Alternatively, if there is no internet connection available, Exobot, is also capable of performing device control through SMS messages, which expands its abuse potential. In order to trick users into entering their credentials, cybercriminals may create simulated layers of popular apps (Google Play; WhatsApp, Viber, etc.) that pop on the screen and hardly differ from authentic ones. Smartphone trojans are usually granted extensive permissions giving full freedom to threat actors on what they can do. This includes forced device locking, blocked access to certain applications, screen capture, SMS management, microphone, and camera manipulation along with other compromising features as well. Exobot is especially known for the botnet feature allowing developers to link a number of infected devices and control them together from the same server to execute malicious steps. In conclusion, malware like Exobot is very devastating as it may lead you to deal with serious privacy issues, financial risks, downgraded device performance, or even identity theft. Thus, we recommend you follow our guidelines below and get rid of this virus as soon as you are able to.

How to remove Teabot Trojan (Android)

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Teabot is a trojan infection that seeks extraction of banking-related data. Based on publicly-available reports, it is known that TeaBot has been targeting more than sixty banks across Europe. Upon getting installed onto a smartphone, it demands users to allow certain Accessibility Features by sending a number of pop-up windows. Once the requested permissions are given, developers behind Teabot will become able to control the infected device using Remote Access Tool (RAT). This will allow cybercriminals to deploy any malicious commands they want (e.g. replicate log-in credentials, take screenshots, manage contacts and send messages, disable security layers, record audio, etc.). As mentioned, the main target of this trojan comes down to financial information meaning cybercriminals might be more interested in stealing data from crypto wallets, banking or insurance apps, and so forth. To conclude, the presence of Teabot may and will be extremely dangerous for all kinds of sensitive data unless it is removed from your device. We recommend you do it as soon as possible using our guidelines below. Step-by-step instructions will help you delete it without traces.

How to remove BianLian Trojan (Android)

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BianLian is the name of a banking trojan designed to exfiltrate mainly finance-related information. After successful installation, it bombards the device's screen with pop-up windows that request users to allow various Accessibility Features. Once the demanded permissions are granted, the trojan acquires an almost limitless range of malicious features. For instance, it might display fake interactable windows on top of various banking applications. This way, cybercriminals attempt to trick users into entering their log-in credentials and steal them eventually. BianLian was also discovered able to run USSD codes and perform calls; prevent users from using a device by force-locking the screen; enable screen recording, manage SMS text messages, and also create an SSH server for protecting its communication channels. Such modules used by the trojan are obviously dangerous and might lead users to significant financial losses, identity thefts, and other problems that no one would desire. Thus, it is important to remove the trojan infection and restore safety on your Android device. You should also change all your log-in credentials and even block your card at the bank to prevent financial abuse.

How to remove Hydra Banking Trojan (Android)

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Recently discovered by cybersecurity researchers at MalwareHunterTeam and Cyble, Hydra has developed a new banking trojan variant designed to infect Android devices. It mimics itself under the Play Store app called Document Manager, with over 10,000 downloads in total. Users who download this app and allow certain permissions required by it will experience substantial security threats. The trojan was specifically reported targeting the second-biggest German bank, named Commerzbank. It requests more than 20 permissions, which, in case allowed, will let threat actors to do whatever they want with your smartphone - e.g. monitor passwords entered in apps, alter various settings, manage phone calls and SMS messages, lock and unlock the infected device, disable antivirus activity, record camera footage and deploy tons of other malicious tasks aimed at stealing finance-related credentials. It is also possible that other collected data like phone or social media contacts may also be abused for tricking people into downloading fake software that executes infections. The most popular symptoms of trojans running within a smartphone system are lags, moments of freezing, overheating, random opening of websites or apps, and other signs of weird behavior that were not present before. Trojans like Hydra are extremely dangerous, and it is important to stop their malicious action by performing the full-blown deletion. It may be hard to do on your own without relevant knowledge, so we prepared a thorough guide to help you succeed in removing Hydra Banking Trojan from your Android device.

How to fix “Follina” MSDT exploit

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Quite recently, hackers found a new Windows vulnerability to aid the penetration of systems with malware. The exploit is inherently related to MSDT (Microsoft Support Diagnostic Tool) and allows cybercriminals to perform various actions by deploying commands through the PowerShell console. It was therefore called Follina and assigned this tracker code CVE-2022-30190. According to some reputable experts who researched this problem, the exploit ends up successful once users open malicious Word files. Threat actors use Word’s remote template feature to request an HTML file from a remote web server. Following this, attackers get access to running PowerShell commands to install malware, manipulate system-stored data as well as run other malicious actions. The exploit is also immune to any antivirus protection, ignoring all safety protocols and allowing infections to sneak undetected. Microsoft does work on the exploit solution and promises to roll out a fix update as soon as possible. We thus recommend you constantly check your system for new updates and install them eventually. Before that, we can guide you through the official resolution method suggested by Microsoft. The method is to disable the MSDT URL protocol, which will prevent further risks from being exploited until an update appears.

How to remove Android Calendar virus

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Often mistaken by a separate virus, messages spamming Google Calendar events are actually related to a malicious/unwanted app that might be running on your Android device. Many victims complain that messages usually appear all over the calendar and attempt to persuade users into clicking on deceptive links. It is likely that after an unwanted application was installed, users experiencing spam at the moment granted access to certain features including permissions to modify Google Calendar events. The links may therefore lead to external websites designed to install malware and other types of infections. In fact, whatever information claimed by them ("severe virus detected"; "virus alert"; "clear your device", etc.) is most likely fake and has nothing to do with reality. In order to fix this and prevent your calendar from being cluttered with such spam messages, it is important to find and remove an application causing the issue and reset the calendar to clean up unwanted events.