Yes, viruses can affect RAM, although it's not the typical way they operate.
While RAM (Random Access Memory) is generally cleared upon reboot, making it a less persistent target for malware, certain types of malicious software do target it for specific purposes. The key is that the malware is actively running and using the RAM.
How Viruses Affect RAM
- RAM Scraping: Some malware, particularly Point-of-Sale (PoS) malware, employs a technique called RAM scraping. According to the provided reference, this involves scanning the RAM of digital devices like payment terminals and card readers to steal sensitive information such as payment card data.
Examples of RAM Targeting Malware
| Malware Type | Target | Method | Goal |
|---|---|---|---|
| PoS Malware | Payment Terminals/RAM | RAM Scraping | Steal Payment Card Data |
Why RAM is Targeted
- Real-time Data Access: RAM holds data actively being used by the system. This makes it a potential source of unencrypted, sensitive information before it's fully processed and stored.
Mitigation
- Keep systems updated: Regularly patch your operating system and software to protect against known vulnerabilities.
- Use reputable antivirus software: A good antivirus solution can detect and remove malware before it has a chance to scrape RAM.
- Monitor network traffic: Look for unusual network activity that could indicate a malware infection.
In conclusion, while typical viruses don't infect RAM in a persistent way, some malware, like PoS malware, uses techniques such as RAM scraping to steal sensitive information while it resides in the computer's memory.
