The FBI has issued a warning about a new phishing attack targeting PR firms and lawyers. The messages contain business specific subject lines designed to trick the recipient into thinking it is a legit message. The body of the message contains either a malicious link or attachment that when clicked will download a file called “srhost.exe” from a site called d.ueopen.xom (URL purposely mistyped to avoid accidental clicks). The FBI is warning IT departments to block any traffic discovered from ueopen, a domain registered in China as it is a definite sign their network has been compromised.

Security experts say attacks against legal agencies are increasing due to the large amount of personal and financial information they possess. Such personal data is highly sought after on the underground cybercrime market and can be used or sold for a handsome profit.

This latest warning came as the Government Accountability Office released a report saying that cyberattacks against the U.S. are rising sharply and that as a result of the increasing connections between the Internet and information systems, hackers are being presented with more and more opportunities to do things like disrupt telephone service or the power grid. The GAO says it is critical that the U.S. do more to protect its infrastructure and critical services and increase its level of cyber security.