Exploit kits: spring 2019 review

Exploit kit activity remains fairly unchanged since our last winter review in terms of active distribution campaigns. But this spring edition will feature a new exploit kit and another atypical EK, in that it specifically goes after routers. The main driver behind these drive-by download attacks...

Unpatched vCard Flaw Could Let Attackers Hack Your Windows PCs

A zero-day vulnerability has been discovered and reported in the Microsoft's Windows operating system that, under a certain scenario, could allow a remote attacker to execute arbitrary code on Windows machine. Discovered by security researcher John Page @hyp3rlinx, the vulnerability was reported ...

Exploit for Use After Free in Adobe Flash_Player

Credits ========= - @Ridter https://github.com/Ridter/CVE-2018-1...

ThreatList: Spam’s Revival is Tied to Adobe Flash’s Demise

Spam click-rates are up in 2018. Last year, 13.4 percent of spam messages that made it into inboxes were clicked on. So far, in 2018 that percentage has jumped to 14.2 percent. The numbers come from F-Secure, which reported Wednesday on the sorry state of users’ better judgment when it comes to...

‘Hidden Bee’ miner delivered via improved drive-by download toolkit

This blog post was authored by @hasherezade and Jérôme Segura. We recently detected a drive-by download attack trying to exploit CVE-2018-4878, a vulnerability in Flash Player, in a sequence that was not matching any of the exploit kit patterns that we currently track. Upon investigation, we...

Microsoft Windows - dnslint.exe Drive-By Download

Microsoft Windows - dnslint.exe Drive-By Download + Credits: John Page aka hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/MICROSOFT-DNSLINT.EXE-FORCED-DRIVE-BY-DOWNLOAD.txt + ISR: Apparition Security Greetz: indoushka | Eduardo Vendor...

Microsoft Windows - 'dnslint.exe' Drive-By Download

Credits: John Page aka hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/MICROSOFT-DNSLINT.EXE-FORCED-DRIVE-BY-DOWNLOAD.txt + ISR: Apparition Security Greetz: indoushka | Eduardo Vendor ================= www.microsoft.com Product ===========...

Microsoft DNS dnslint.exe Tool Forced Drive-By Download Vulnerability

Microsoft's dnslint.exe tool does not verify domain names when parsing DNS text-files using the "/ql" switch making it prone to forced drive-by downloads, providing an end user is tricked into using a server text-file containing a script/binary reference instead of a normally expected domain name...

Microsoft dnslint.exe DNS Tool Forced Drive-By Download

Credits: John Page aka hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/MICROSOFT-DNSLINT.EXE-FORCED-DRIVE-BY-DOWNLOAD.txt + ISR: Apparition Security Greetz: indoushka | Eduardo Vendor ================= www.microsoft.com Product ===========...

CoinHive URL Shortener Abused to Secretly Mine Cryptocurrency Using Hacked Sites

Security researchers have been warning about a new malicious campaign that leverages an alternative scheme to mine cryptocurrencies without directly injecting the infamous CoinHive JavaScript into thousands of hacked websites. Coinhive is a popular browser-based service that offers website owners...

Obfuscated Coinhive shortlink reveals larger mining operation

During the past several months, in-browser mining has continued to affect a large number of websites, predominantly relying on Coinhive's infamous API. We documented several campaigns on this blog, in particular Drupalgeddon, where attackers are taking advantage of vulnerabilities in popular...

Nextcloud: Missing X-Content-Type-Options

Nextcloud doesn't have a header settings for X-Content-Type Options which means it is vulnerable to MIME sniffing. The only defined value, "nosniff", prevents Internet Explorer and Google Chrome from MIME-sniffing a response away from the declared content-type. This also applies to Google Chrome...

A week in security (April 30 – May 6)

Last week on Labs, we examined the Spartacus ransomware, reported about a new tactic used by the Necurs malspam campaign, informed you about the recommended Twitter password change, and discussed engaging students to start considering careers in cybersecurity. Other news NTML credentials can be...

Adobe Acrobat DC (Continuous Track) Multiple Vulnerabilities (APSB17-36) - Mac OS X

Adobe Acrobat DC Continuous Track is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

Adobe Acrobat 2017 Multiple Vulnerabilities (APSB17-36) - Mac OS X

Adobe Acrobat 2017 is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:adobe:acrobat";...

Adobe Acrobat Reader DC (Classic Track) Multiple Vulnerabilities (APSB17-36) - Mac OS X

Adobe Acrobat Reader DC Classic Track is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

Adobe Acrobat DC (Continuous Track) Multiple Vulnerabilities (APSB17-36) - Windows

Adobe Acrobat DC Continuous Track is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

Adobe Acrobat Reader 2017 Multiple Vulnerabilities (APSB17-36) - Mac OS X

Adobe Acrobat Reader 2017 is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

A week in security (February 19 – February 25)

Last week on Malwarebytes Labs, we gave readers a primer on encryption, took a stab at that Deepfakes tool Internet users seem to be interested in, and started a new series that talks about GDPR. We also looked at a drive-by download campaign that starts in booby-trapped Chinese websites that dro...

Avzhan DDoS bot dropped by Chinese drive-by attack

The Avzhan DDoS bot has been known since 2010, but recently we saw it in wild again, being dropped by a Chinese drive-by attack. In this post, we'll take a deep dive into its functionality and compare the sample we captured with the one described in the past. Analyzed sample...