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WolfRAT

Also known as: -

Category: Malware 

Type: Trojan

Platform: Android

Variants: -

Damage potential: Data theft (e.g., passwords), remote device access and control, additional malware installation, surveillance, keylogging, and financial loss.

Overview

WolfRAT is a remote access trojan (RAT) that primarily targets Android devices in Thailand, focusing on users of messaging apps like WhatsApp, Facebook Messenger, and Line. WolfRAT can remotely access and control infected devices without authorization.

WolfRAT can record screen activity, intercept, collect, delete, and send SMS messages, and access sensitive data, including user accounts, photos, videos, call logs, and browser history. It can also manipulate the victim’s device by taking screenshots and uploading them to a command-and-control (C&C) server.

The malware often disguises itself as legitimate applications, such as Google services, to evade detection. WolfRAT is continuously updated with new features, making it a persistent threat.

Possible symptoms

Possible symptoms of WolfRAT infection include:

  • You notice apps that you did not install yourself. 
  • Slow system performance.
  • Sudden device or app crashes.
  • You find outgoing messages or emails you didn’t send.
  • The battery drains faster than usual.
  • Unusually high data usage. 
  • Unusual network traffic (e.g., data transmissions to unknown command and control servers).
  • Suspicious pop-ups, warnings, or notifications. 
  • Your security software is disabled.
  • Unusual behavior in messaging apps (e.g., frequent logouts or texts being read without user interaction).
  • Device overheating (typically due to excessive background processes).
  • Changes in settings (this may involve disabled security features or unauthorized permissions for apps). 

Sources of infection

WolfRAT can spread in many ways, often through social engineering tactics that trick users into downloading and installing the malware on their Android devices. 

  • Phishing links. If you have clicked on a malicious link or opened an unsafe attachment, you may unknowingly download WolfRAT. This risk also applies to phishing emails, SMS messages, or messaging apps like WhatsApp and Facebook Messenger.
  • Drive-by downloads. Users may accidentally download WolfRAT when they visit a compromised website. 
  • Exploiting cybersecurity vulnerabilities. WolfRAT may exploit security vulnerabilities in the Android operating system or in installed apps to infect a device. 
  • Fake updates and applications. WolfRAT often disguises itself as a legitimate application or update, such as Google services, Google Play, or Flash updates.

Protection 

WolfRAT is currently localized in Thailand, but it can easily spread to other parts of the world. To protect your device, always accept update notifications from your antivirus software or any malware protection app on your phone. Additionally, consider these measures to safeguard your device and personal information even further:

  • Regularly update your software. WolfRAT is known to target security vulnerabilities. Keep your software updated to protect your devices from the latest cybersecurity threats. 
  • Download apps from trusted sources. Be careful with downloads — only use official websites and reliable app stores. 
  • Enable multi-factor authentication (MFA). While multi-factor authentication itself can’t prevent a WolfRAT infection, it can help protect your accounts even if WolfRAT steals your passwords.
  • Be wary of phishing emails. WolfRAT may spread via phishing and spam emails. If you get an email that sounds off or urges you to click on a link, act with caution.
  • Stay alert while browsing. Hackers may create fake websites that look legitimate to spread WolfRAT and other trojans. Pay close attention to the websites you visit, and be cautious about the links you click on.
  • Use NordVPN’s Threat Protection. For a generally safer online experience, use NordVPN’s Threat Protection feature. It works on Android devices and blocks malicious sites.

WolfRAT removal 

Removing WolfRAT may be challenging because it can grant itself device administrator privileges to prevent removal. Therefore, before uninstalling, you must revoke any device administrator privileges that WolfRAT may have obtained. You can do it  through "Settings" > "Security" > "Device administrators."

Next, enter Android safe mode and disconnect your device from the internet to prevent the malware from communicating with its C&C servers. Then, use reputable antivirus software to run a full security scan and follow the steps to remove the trojan.

If the malware persists, consider performing a factory reset on your Android device. However, before you do that, back up any important data — such as photos, contacts, and documents — to ensure you don’t lose anything valuable. WolfRAT removal can be complicated, so if you’re unsure what to do next, seek help from an experienced IT professional​.