Threat Insight

Cybersecurity research and commentary on malware, user actions, and other threats to information security
June 01, 2016

CryptXXX Ransomware Learns the Samba, Other New Tricks With Version 3.100

Proofpoint Staff

With its latest version, detected last week by Proofpoint researchers, CryptXXX breaks the currently available decryption tool and adds new capabilities to encrypt shared network resources, among other updates.

May 27, 2016

Two Threats For the Price of One: Credential Phishing Leads to iSpy Keylogger

Proofpoint Staff

Proofpoint researchers recently detected a phishing campaign that ultimately led recipients to download and install the iSpy keylogger.

May 26, 2016

Locky Ransomware Actors Turning To XORed JavaScript to Bypass Traditional Defenses

Proofpoint Staff

Proofpoint researchers have observed certain threat actors distributing Locky with JavaScript attachments using XOR obfuscation to conceal the malware they are distributing, adapting to increasing awareness of malicious JavaScript attachments to email.

May 24, 2016

Beware the JavaScript - Malicious Email Campaigns With .js Attachments Explode

Proofpoint Staff

Proofpoint researchers have been tracking what appears to be the "next big thing" in email malware distribution - JavaScript attachments by the hundreds of millions.

May 12, 2016

Hancitor and Ruckguv Reappear, Updated and With Vawtrak On Deck

Axel F, Matthew Mesa

Proofpoint researchers analyze two updated malware downloaders that have reappeared after several months hiatus and profile one threat actor experimenting with various loaders to distribute Vawtrak.

May 10, 2016

Setting Sights On Retail: AbaddonPOS Now Targeting Specific POS Software

Matthew Mesa, Darien Huss

Proofpoint researchers track an updated point-of-sale malware called AbaddonPOS and loader being distributed in targeted, personalized emails to US retailers.

May 09, 2016

CryptXXX 2.0: Ransomware Authors Strike Back Against Free Decryption Tool

Proofpoint Staff

Proofpoint researchers have been tracking Version 2.00x of the CryptXXX ransomware. The latest iteration, version 2.006, breaks the freely available decryption tool for CryptXXX.

May 05, 2016

Exploit Kit Déjà Vu: Massive Email Campaigns Spreading Dridex Via Angler

Matthew Mesa

Proofpoint researchers observed massive email campaigns with a twist - malicious URLs in the emails lead to purpose-built pages on compromised websites that in turn use Angler to drop Dridex on vulnerable PCs.

April 27, 2016

Ransomware Explosion Continues: CryptFlle2, BrLock and MM Locker Discovered

Axel F, Proofpoint Staff

Proofpoint researchers continue to see the regular and rapid emergence of new ransomware strains and variants, validating trends observed since the end of 2015.

April 25, 2016

Quarterly Threat Summary: Dridex, ransomware, and BEC phishing hog the spotlight

Proofpoint Staff

Proofpoint threat researchers publish their analysis of the top threats and trends of the first three months of 2016.


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