Remove 2017 Remove Blog Remove DNS Remove Internet
article thumbnail

April’s Patch Tuesday Brings Record Number of Fixes

Krebs on Security

Microsoft today released updates to address 147 security holes in Windows, Office , Azure ,NET Framework , Visual Studio , SQL Server , DNS Server , Windows Defender , Bitlocker , and Windows Secure Boot. “As far as I can tell, it’s the largest Patch Tuesday release from Microsoft of all time.”

DNS 250
article thumbnail

Bomb Threat, Sextortion Spammers Abused Weakness at GoDaddy.com

Krebs on Security

Experts at Cisco Talos and other security firms quickly drew parallels between the two mass spam campaigns, pointing to a significant overlap in Russia-based Internet addresses used to send the junk emails. When it was initially set up, it took advantage of two managed DNS servers assigned to it by GoDaddy — ns17.domaincontrol.com,

DNS 242
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

A Defense-in-Depth Approach Could Stop the Next Big Hack in its Tracks

Webroot

An endpoint DNS solution could have stopped the Trojanized Orion version by refusing to resolve the domain names of the command-and-control servers, again disrupting the infection to the point that no real damage could be done. Every employee’s home network has a different set of security protocols and internet use is unregulated.

Hacking 116
article thumbnail

CosmicStrand: the discovery of a sophisticated UEFI firmware rootkit

SecureList

One of our industry partners, Qihoo360, published a blog post about an early variant of this malware family in 2017. There, CosmicStrand sleeps for 10 minutes and tests the internet connectivity of the infected machine. DNS requests are performed in this fashion, using either Google’s DNS server (8.8.8[.]8)

Firmware 145
article thumbnail

Humans are Bad at URLs and Fonts Don’t Matter

Troy Hunt

The victim, through no fault of their own, has been the target of numerous angry tweets designed to ridicule their role in internet security and suggest they are incapable of performing their duty. Obviously, the image is resized to the width of paragraphs on this blog, give it a click if you want to check it out at 1:1 size.

Phishing 362
article thumbnail

Inside Mirai the infamous IoT Botnet: A Retrospective Analysis

Elie

This post provides a retrospective analysis of Mirai — the infamous Internet-of-Things botnet that took down major websites via massive distributed denial-of-service using hundreds of thousands of compromised Internet-Of-Things devices. This blog post recounts Mirai’s tale from start to finish. Mirai takedown the Internet.

IoT 107
article thumbnail

Necurs Botnet adopts a new strategy to evade detection

Security Affairs

The Necurs botnet was not active for a long period at the beginning of 2017 and resumed its activity in April 2017 when it was observed using a new technique to avoid detection. ” reads a blog post published by the firm. ” continues the blog post. “At times, they’ve been known to be inactive for weeks.

DNS 78