Google Chrome Domain Spoofing Vulnerability (CNVD-2019-01759)

Chrome is a simple and efficiently designed web browsing tool developed by Google that is characterized by its simplicity and speed. A domain spoofing vulnerability exists in Google Chrome. The vulnerability stems from the URL Formatter in Google Chrome mishandling obfuscated characters. A remote...

Widespread Malvertising Campaign Hijacks 300 Million Sessions

A massive malvertising campaign targeting iOS devices hijacked a whopping 300 million browser sessions in just 48 hours. Researchers at Confiant recorded the campaign Nov. 12, and said that the threat actor behind the campaign is still active to this day. A malicious landing page According to...

Cmd and Conquer: De-DOSfuscation with flare-qdb

When Daniel Bohannon released his excellent DOSfuscation paper, I was fascinated to see how tricks I used as a systems engineer could help attackers evade detection. I didn’t have much to contribute to this conversation until I had to analyze a hideously obfuscated batch file as part of my job on...

Threat Roundup for November 2 to November 9

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 02 and Nov. 09. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics...

ThreatList: Microsoft IIS Sees Triple-Digit Spike in Cyberattack Volume

Internet Information Services IIS, an extensible web server originally created by Microsoft for use with the Windows NT family, saw a whopping 782x increase in cyberattacks during the second quarter, according to analysis. According to eSentire’s latest threat report based on data gathered from...

Out of sight but not invisible: Defeating fileless malware with behavior monitoring, AMSI, and next-gen AV

Consider this scenario: Two never-before-seen, heavily obfuscated scripts manage to slip past file-based detection and dynamically load an info-stealing payload into memory. The scripts are part of a social engineering campaign that tricks potential victims into running the scripts, which use the...

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...

Microsoft Windows Defender AV: Block execution of potentially obfuscated scripts

This test checks the setting for policy OpenVAS Vulnerability Test $Id: winavblockexecobfuscatedscripts.nasl 11495 2018-09-20 10:06:25Z emoss $ Check value for Configure Attack Surface Reduction rules: Block execution of potentially obfuscated scripts Authors: Emanuel Moss Copyright: Copyright c...

Design/Logic Flaw

An issue was discovered on Neato Botvac Connected 2.2.0 and Botvac 85 1.2.1 devices. Static encryption is used for the copying of so-called "black box" logs event logs and core dumps to a USB stick. These logs are RC4-encrypted with a 9-character password of ^JEd4W!I that is obfuscated by hiding ...

Foxit Reader setFocus Type Obfuscation Remote Code Execution Vulnerability

Foxit Reader for Windows is China's Foxit Foxit Software Corporation, a Windows-based platform for PDF document reader. A type-obfuscated remote code execution vulnerability exists in the handling of parameters passed into the 'setFocus' function in Foxit Reader 9.1.0.5096 and earlier versions fo...

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...

Olympic Destroyer Returns to Target Biochemical Labs

Olympic Destroyer, the threat actor that caused a crippling sabotage attack on the networks supporting this year’s Winter Games in Pyeongchang, South Korea, has resurfaced with a spy campaign – and with a wider target range. The new campaign began last month and is ongoing, employing spear-phishi...

Security Bulletin: IBM Security Access Manager uses configuration files with obfuscated passwords that can be accessed by authenticated users (CVE-2015-5013)

Summary The IBM Security Access Manager appliance stores obfuscated passwords in plain-text configuration files that can be accessed by authenticated users. Vulnerability Details CVEID: CVE-2015-5013 DESCRIPTION: The appliance includes configuration files that contain obfuscated...

Malicious PHP Script Infects 2,400 Websites in the Past Week

A botnet dubbed Brain Food is giving webmasters indigestion with related attacks that push bogus diet pills and IQ-boosting pills via web pages hosted on legitimate sites. So far, spammers have been successful, thanks to an effective Hypertext Preprocessor PHP script also called Brain Food that h...

Spartacus ransomware: introduction to a strain of unsophisticated malware

Spartacus ransomware is a new sample that has been circulating in 2018. Written in C, the original sample is obfuscated, which we will go over as we extract it to its readable state. Spartacus is a relatively straight-forward ransomware sample and uses some similar techniques and code to others w...

StaCoAn - Crossplatform tool which aids developers, bugbounty hunters and ethical hackers performing static code analysis on mobile applications

StaCoAn is a crossplatform tool which aids developers, bugbounty hunters and ethical hackers performing static code analysis on mobile applications. This tool will look for interesting lines in the code which can contain: Hardcoded credentials API keys URL's of API's Decryption keys Major coding...

Open Source Static Code Analyser: StaCoAn

StaCoAn is a crossplatform tool which aids developers, bugbounty hunters and ethical hackers performing static code analysis on mobile applications. This tool will look for interesting lines in the code which can contain: Hardcoded credentials API keys URL’s of API’s Decryption keys Major coding...

Linux/x86 - Disable ASLR Security + Obfuscated Shellcode (23 bytes)

;Title : Linux/x86 - Disable ASLR Security obfuscated shellcode - 23 bytes ;Date : 24 Jan 2018 ;Author : 0xAlaufi ;Tested on : Linux/x86 Ubuntu 12.04.5 global start section .text start: jmp zero2 zero18: mov al,0x4 jmp zero19 zero1a: mov al,0x6 jmp zero1b zeroc: push 0x72702f2f jmp zerod zero12:...

Linux/x86 - Disable ASLR Security + Obfuscated Shellcode (23 bytes)

Linux/x86 - Disable ASLR Security + Obfuscated Shellcode 23 bytes. Shellcode exploit for Linuxx86 platform ;Title : Linux/x86 - Disable ASLR Security obfuscated shellcode - 23 bytes ;Date : 24 Jan 2018 ;Author : 0xAlaufi ;Tested on : Linux/x86 Ubuntu 12.04.5 global start section .text start: jmp...