Archive for 8th February 2010

Cyber security – how the Google attack can teach us something

I’ve been following the news related to Google and GMail getting hack since the day it was discovered but as cyber security is not my forte, I didn’t fully understand it and more to the point, didn’t think I ever would. Thankfully, Kim Zetter, reporting for WIRED does an excellent job of explaining "Advanced Persistent Threats" (APT) to the rest of us. Here are just a few points from the article …

… the attacks are distinctive in the kinds of data the attackers target, and they are rarely detected by antivirus and intrusion programs … the intrusions grab a foothold into a company’s network, sometimes for years, even after a company has discovered them and taken corrective measures

… The attackers were in the firm’s network for a year before the [law] firm learned from law enforcement that it been hacked. By then, the intruders harvested thousands of e-mails and attachments from mail servers.

… Mandiant has seen malware and backdoors that were programmed to lay dormant for months — more than a year in one case — before awakening and sending a beacon to an external command center signaling that it was alive — long after the company thought it had eradicated the intruders.

The article outlines the process of attack …

    • the attackers conduct reconnaissance to identify workers to target in spear-phishing attacks … then send malicious e-mails or instant messages that appear to come from a trusted colleague or friend

    • the e-mails have an attachment or link to a ZIP file containing zero-day malware that exploits Microsoft Office or Adobe Reader vulnerabilities. they focus on obtaining elevated access privileges to burrow further into the network

    • stolen e-mail messages and documents are collected and stored on a staging server inside the company’s network before being encrypted with custom algorithms and compressed into an .rar file.

    • the files are then siphoned out in small random bursts generally via normal protocols

Read the full article @ "Report Details Hacks Targeting Google, Others", Wired.com