Metamorfo Banking Trojan Keeps Its Sights on Brazil

This blog post was authored by Edmund Brumaghin, Warren Mercer, Paul Rascagneres, and Vitor Ventura. Executive Summary Financially motivated cybercriminals have used banking trojans for years to steal sensitive financial information from victims. They are often created to gather credit card...

Spam and phishing in Q3 2018

Quarterly highlights Personal data in spam We have often said that personal data is candy on a stick to fraudsters and must be kept safe that is, not given out on dubious websites. It can be used to gain access to accounts and in targeted attacks and ransomware campaigns. In Q3, we registered a...

This Week in Security News: Spam Campaigns and Vulnerable Infrastructures

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, see how cybercriminals have learned to become more creative with malware through spam campaigns. Also, understand why securing energy and...

Google Updates reCAPTCHA: No More Boxes to Check

Google this week has rolled out its latest version of the reCAPTCHA mechanism, which is meant to weed out spam and abuse by robots on websites. It marks a dramatic departure from previous reCAPTCHA efforts by eliminating the need for visitors to take any extra steps in order to log onto a website...

Ransomware Threat Continues: How Infections Take Place

If cybersecurity consultants and IT admins have learned anything of the current threat environment, it's that ransomware will continue to be a pervasive and dangerous threat to individual users, enterprises and organizations at large. When they first emerged, these infections were unlike anything...

Facebook Bans More Than 800 Accounts in Disinformation Purge

Facebook on Thursday announced it has removed hundreds of pages and accounts as the company cracks down on spam. The move comes at a time when Facebook is under intense scrutiny about how it handles misinformation, particularly as the U.S. midterm elections draw near. The company said it has...

Innovative Phishing Tactic Makes Inroads Using Azure Blob

A fresh tactic for phishing Office 365 users employs credential-harvesting forms hosted on Azure Blob storage – signed with legitimate Microsoft SSL certificates to lend an air of legitimacy. Azure Blob Storage is a cloud storage solution for hosting unstructured data such as images, video or tex...

Avoid these Doctor Who Series 11 scams

The new season of Doctor Who has finally landed on television screens around the world, and we’ve started to see the first few signs of spam and other assorted nonsense lumbering online. A rash of YouTube accounts claiming to offer up the new series are making the rounds, all of which generally...

Input validation

A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and validation checking...

CVE-2018-0447

The CVE-2018-0447 vulnerability affects Cisco AsyncOS Software for the Cisco Email Security Appliance (ESA). It arises from incomplete input/validation handling for certain SPF messages, allowing an unauthenticated, remote attacker to bypass URL filters configured on the ESA by sending a crafted ...

CVE-2018-0447 Cisco Email Security Appliance URL Filtering Bypass Vulnerability

A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and validation checking...

pwnedOrNot v1.1.0 - Tool To Find Passwords For Compromised Email Accounts Using HaveIBeenPwned API

pwnedOrNot uses haveibeenpwned v2 api to test email accounts and tries to find the password in Pastebin Dumps. Features haveibeenpwned offers a lot of information about the compromised email, some useful information is displayed by this script: Name of Breach Domain Name Date of Breach Fabricatio...

[SECURITY] Fedora 27 Update: spamassassin-3.4.2-2.fc27

SpamAssassin provides you with a way to reduce if not completely eliminate Unsolicited Commercial Email SPAM from your incoming email. It can be invoked by a MDA such as sendmail or postfix, or can be called from a procmail script, .forward file, etc. It uses a genetic-algorithm evolved scoring...

Phone spampocalypse: fighting back in the age of unwanted calls

When Nigel Guest, then president of the Council of Neighborhood Associations CNA, sent an email with the subject line, “test,” and the small letter “x” in its message body, the city of Berkeley, CA, went into a frenzy. You see, Mr. Guest thought he sent it only to himself, but he actually posted...

Mail Security Tester - A Testing Framework For Mail Security And Filtering Solutions

A testing framework for mail security and filtering solutions. IMPORTANT: Don't do anything evil with this! Tests of cloud or otherwise hosted solutions should always be approved by the tested provider. Only use your own test accounts and don't annoy anyone with a load of test mails. Installation...

A week in security (September 17 – 23)

Last week, we took a look at a low level spam campaign on Twitter, explored the signs of falling victim to phishing, and examined a massive WordPress compromise. We also explained some SASL vulnerabilities and covered a breaking Emotet spam campaign. Other cybersecurity news: NewEgg attacked by...

Adwind Dodges AV via DDE

This blog post is authored by Paul Rascagneres, Vitor Ventura and with the contribution of Tomislav Pericin and Robert Perica from ReversingLabs. Introduction Cisco Talos, along with fellow cybersecurity firm ReversingLabs, recently discovered a new spam campaign that is spreading the Adwind 3.0...

Threat Roundup for September 14 to September 21

Today, as we do every week, Talos is giving you a glimpse into the most prevalent threats we’ve observed this week — covering the dates between Sept. 14 and 21. As with previous roundups, this post isn’t meant to be an in-depth analysis. Instead, we will summarize the threats we’ve observed by...

Emotet on the rise with heavy spam campaign

The threat landscape is changing once again, now that the ocean of cryptocurrency miners has shrunk to a small lake. Over the last couple months, we've seen cybercriminals lean back on tried and true methods of financial theft and extortion, with the rise of a familiar Banking Trojan: Emotet...

Delphi Packer Looks for Human Behavior Before Deploying Payload

As bad actors continue to innovate in the area of sandbox evasion, the use of the Delphi programming language to pack malware code has become more and more prevalent. Researchers recently observed several spam campaigns using a specific packer written in Delphi that goes to great lengths to hunt...