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Malicious code and fraudulent messages often circulate via email. Never open unsolicited attachments or hyperlinks, and always verify the source of any messages that ask you for sensitive information.
Although no widespread attacks are currently targeting web users, take normal precautions while viewing sites because of ongoing threats such as script-based attacks and phishing attacks that use fake sites.
Currently there are no widespread outbreaks of malicious code circulating via instant messaging. In the past, however, some malicious code did take advantage of IM. Always use normal security precautions whenever you use IM.
Although attackers often use this medium to distribute trojan applications and malicious code, no high-profile threats are currently affecting the medium. Always use caution when downloading files, especially from sources you don’t know or trust.
Anand Muralidharan @ Tue, 18 Jun 2013 11:28:34
Hospitality is the friendly bonding between the guest and host, especially efforts to make the guest ...
Val S @ Fri, 14 Jun 2013 09:40:35
Contributor: Hiroshi Shinotsuka Malware authors are always seeking new ways to hone their craft. As cybercriminals ...
Symantec Security Response @ Thu, 13 Jun 2013 17:25:57
The time between discovery of a vulnerability and the emergence of an exploit keeps getting shorter—sometimes ...
Trojan.Ransomlock is a detection for Trojan horse programs that lock the desktop of a compromised computer making it unusable.
The threat may arrive on the compromised computer by various means, such as visiting malicious sites, by opening untrusted links or advertisement banners, or by installing software from untrusted sources.
These programs attempt to convince the user to pay money in order to have their computer unlocked and use a variety of different techniques in order to encourage the user to pay the ransom.
More information on Trojan.Ransomlock is available in the Trojan.Ransomlock writeup.
Videos
Security Response clips about malware and its effects
How They Attack
Over the last 18 months, an ominous change has swept across the Internet. The tools driving the new attacks and fueling the blackmarket are crimeware - bots, Trojan horses, and spyware.
How does cybercrime affect people? Check out these real-world examples. To avoid becoming a victim of cybercrime, learn the basics of online protection.
