
A remote access Trojan (RAT) is malware that gives an attacker control over a target computer. RATs are usually downloaded invisibly by unsuspecting users when they visit malicious websites or open infected email attachments. Once installed, RATs allow attackers to remotely access and take control of the target computer without the user's knowledge or permission.
RATs are particularly harmful since they may be used to bypass established security measures such as firewalls and antivirus software. RATs allow attackers access to a target computer, making them difficult to notice and remove.
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RATs are typically downloaded onto a target computer without the user's knowledge or consent. Once installed, the RAT will establish a connection with a remote server controlled by the attacker. This connection allows the attacker to remotely control the victim's computer as if they were sitting in front of it.The attacker can use the RAT to perform a variety of tasks on the victim's computer, including:
RATs are often used to create "botnets," which are networks of infected computers that can be controlled by the attacker and used for various malicious purposes. Botnets can be used to send spam emails, launch denial-of-service attacks, or steal sensitive information en masse.
RATs are particularly dangerous because they give attackers complete control over a victim's computer. Unlike other types of malware, RATs are not limited by the permissions that the user has on the target machine. This means that even if a user does not have administrative privileges, a RAT can still be used to install other malware or make changes to the system.RATs are also difficult to detect and remove because they rely on a constantly open connection to the attacker's server. This connection can be disguised as legitimate traffic, making it difficult for firewalls and anti-virus software to block or remove it. Even if a RAT is detected, it can be complicated to remove altogether without damaging the victim's computer.
There are a few simple steps that you can take to protect yourself from RATs
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Remote Access Trojans (RATs) are a dangerous type of malware that allow attackers to secretly gain full remote control over a victim’s computer. They are often installed without the user’s knowledge through malicious websites, infected email attachments, or unsafe downloads, giving cybercriminals the ability to steal sensitive information, monitor activity, and even access webcams or microphones.
Because RATs can bypass security defenses and remain difficult to detect, they pose a serious threat to both individuals and organizations. Staying protected requires keeping software updated, using reliable antivirus tools, avoiding suspicious links or attachments, and only downloading from trusted sources.
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If your device starts acting “possessed,” a RAT might be behind it.
Learn how to spot RAT-related symptoms before your system becomes part of a botnet in our RAT scams guide.
Time is critical, act fast to stop further damage.
Don’t ignore even mild suspicions, malware infections can escalate quickly.
Yes, RATs are a direct pipeline to your personal data.
For total peace of mind, set up identity monitoring and get notified the moment your data leaks online.
RATs are often disguised as “helpful” files or links.
Learn to spot the red flags with our scam prevention tools.
Yes, Guardio blocks RATs before they take control.
Learn more about how Guardio handles RAT-level threats across your devices.
