NetQin, the mobile phone internet security company, has discovered a piece of malware that is spreading via Symbian S60 handsets, creating a mobile botnet.
The discovered malware comes in three varieties, either disguising itself as games or special offers, and is building an extensive mobile botnet by infecting Symbian S60 3rd and 5th edition devices. This malware is particularly insidious because it leverages the trust users place in seemingly benign applications, making it easier to spread and harder to detect.
How the Malware Operates
Once installed, the malware starts to send messages via the owner’s address book or send emails randomly by connecting to a server, but leaving no trace of either. This means that users may not even realize their device has been compromised until they notice unusual activity, such as unexpected charges on their phone bill or complaints from contacts who have received spam messages. The malware’s ability to operate stealthily makes it a potent tool for cybercriminals looking to build a mobile botnet.
In addition to sending messages and emails, the malware can also potentially access other sensitive information stored on the device, such as personal photos, documents, and even banking information. This makes it a significant threat not just to individual users, but also to businesses that rely on mobile devices for communication and data storage.
Response and Mitigation
In an attempt to disable the malware, the Symbian Foundation has removed Symbian signed certificates used to sign the malware and dismissed claims that the malware was creating a botnet, saying it is ‘very minor’. However, security experts caution that even minor threats can escalate quickly if not addressed promptly. Users are advised to be vigilant and take proactive steps to protect their devices.
To mitigate the risk of infection, users should only download applications from trusted sources and avoid clicking on suspicious links or offers. Regularly updating the device’s software and using reputable mobile security applications can also help protect against malware. Additionally, users should monitor their phone bills for unauthorized messages or charges, as these can be early indicators of a compromised device.
It’s also important for users to educate themselves about the latest security threats and best practices for mobile device security. By staying informed and taking proactive measures, users can reduce their risk of falling victim to malware and other cyber threats.
In conclusion, while the Symbian Foundation has taken steps to address the malware, it is ultimately up to users to protect their devices and personal information. By being cautious and vigilant, users can help prevent the spread of malware and safeguard their mobile devices against future threats.
Via Intomobile
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