Hackers Install Free SSL Certs from Let's Encrypt On Malicious Web Sites

Who else didn't see this coming? It was so obvious as I stressed earlier that the Let's Encrypt free HTTPS certificates would not just help legitimate website operators to encrypt its users' traffic, but also help criminals to bother innocent users with malware through secure sites. Let's Encrypt...

Top-ranked Advertising Network Leads to Exploit Kit

Threat Overview The online advertisements that people see across a wide range of popular and lesser-known websites can lead to malware infections and other forms of compromise, sometimes without any user interaction whatsoever and without any indicators there is an issue. This emerging threat is...

Rig Exploit Kit 3.0 Claims 1 Million Malvertising Victims

LAS VEGAS – A rampant malvertising campaign fueled by a new version of the Rig Exploit Kit has claimed at least 950,000 victims worldwide and is doing so with an unprecedented success rate. Researchers at Trustwave said in advance of this week’s Black Hat conference that they have been watching...

Click-Fraud Malware Spreading via JavaScript Attachments

A new malware campaign has been spotted that has begun seeding spam messages with a downloader heavily obfuscated with JavaScript. The SANS Internet Storm Center said today that two days ago, a flood of spam messages were observed laced with .js attachments. The JavaScript obfuscates a downloader...

Ransomware Campaign Alters Variants to Evade Detection

A recently uncovered operation has been mutating versions of ransomware to better avoid getting detected. As part of the campaign, which researchers from Cambridge-based Cybereason have dubbed Kofer, attackers are tweaking certain variables of ransomware like CryptoWall 3.0 and Crypt0L0cker to...

Patched Apple QuickTime Vulnerability Details Disclosed

Use-after-free vulnerabilities have nudged buffer overflows off their exclusive perch of serious bugs that hackers covet. They’ve been used in a number of targeted attacks, including some high-profile nation-state attacks, and also were a motivation for Microsoft to implement UAF-specific...

Exploit Kit Delivers Pharming Attacks Against SOHO Routers

Attacks targeting small office and home router DNS settings, long a target for network intruders seeking to redirect web traffic to malicious sites, have for the first time been included in an exploit kit—one that specializes in cross-site request forgery attacks. An exploit kit has been spotted ...

Malvertising Leads to Magnitude Exploit Kit, Ransomware Infection

Criminals are injecting malicious redirect code into advertisements in order to route user traffic toward sites hosting the Magnitude exploit kit, which, in turn, infects those users with strains of file-encrypting ransomware. Magnitude predominately relies on drive-by-download attacks in which i...

Why Protecting Your Magento Ecommerce Website Is So Damn Important

The Market of E-commerce websites is at its peak, as today people love to shop online to save their time. However, E-commerce and financial sites stand first in the rundown of potential victims as they manage financial exchanges. The traditional way to target victims of e-commerce sites is to use...

Dennis Fisher and Mike Mimoso Discuss the CNNIC Issue, Malvertising and Verizon's Supercookie News

Dennis Fisher and Mike Mimoso talk about Google’s decision to drop Chinese CA CNNIC from Chrome’s trust store, the scope of the malvertising threat and Verizon’s super cookie use. Download: digitalunderground193.mp3 Music by Chris Gonsalves...

Malvertising Abuses Real-Time Bidding on Ad Networks

Dark corners of the Internet harbor trouble. They’re supposed to. But what about when Yahoo, CNN.com, TMZ and other busy destination sites heave disaster upon visitors? That’s the challenge posed by malvertising, the latest hacker Golden Goose used in cybercrime operations and even in some target...

Rig Exploit Kit Source Code Leaked

A spitting match between developers of the Rig Exploit Kit and one of its resellers resulted in a partial leak of the kit’s source code in a hacker forum. Rig is less than a year old and is spread primarily in malvertising campaigns, pushing Flash, Java and Microsoft Silverlight exploits; some...

Hanjuan Exploit Kit, Malvertising Dangers in Flash Zero Days

The recent trio of Flash zero days has not only caused a lot of scrambling at Adobe—which yesterday released a patch for the last in that line of vulnerabilities—but also shined light on a fairly unknown exploit kit, exposed the evolving danger associated with malvertising, and made clear the pai...

Adobe Begins Patching Third Flash Player Zero Day

Adobe announced today that it will begin distributing a patch for the third and most recent zero-day vulnerability in Flash Player. Version 16.0.0.305 will be distributed to users who have enabled auto-update. Adobe said it expects to have a manual update available tomorrow. “We are working with...

Adobe Auto-Update Flash Player Zero Day Patch

Adobe on Saturday began patching a zero-day vulnerability in Flash Player, exploits for which have been included in the notorious Angler Exploit Kit. This is the second of two previously unreported critical flaws in the software that have been patched in the last five days. Adobe last Thursday se...

Google AdWords Campaigns Hijacked by Malvertisers

A malvertising scheme has hijacked at least two distinct Google AdWords advertising campaigns, redirecting users who had browsed to the sites hosting the poisoned ads without those visitors even clicking on them. Some of the sites in question service more than a million monthly users. Last week,...

AOL Advertising Network Abused to Distribute Malware

Security researchers have uncovered a malvertising campaign used to distribute malware to visitors of The Huffington Post website, as well as several other sites, through malicious advertisements served over the AOL advertising network. At the end of last year, Cyphort Labs, security firm...

Malvertising Campaign Hits AOL Ad Network, Leads to Exploit Kit

Researchers have detected a malvertising campaign running on a pair of sites owned by Huffington Post that is using ads distributed through an AOL ad network. The attack is sending victims through a series of redirects that eventually brings them to a landing page that is running an exploit kit...

Adobe Releases Emergency Flash Player Patch

Adobe today revised a security bulletin it released more than a month ago, adding a patch for a code-execution vulnerability in Flash Player already included in some exploit kits. French researcher Kafeine found the exploits in the Angler and Nuclear kits less than a week after Adobe released an...

Google DoubleClick Open Redirect

Google DoubleClick.netAdvertising System URL Redirection Vulnerabilities Can be Used by Spammers Although Google does not include Open Redirect vulnerabilities in its bug bounty program, its preventive measures against Open Redirect attacks have been quite thorough and effective to date. However,...