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Handler on Duty:
Johannes Ullrich
Threat Level:
green
Date
Author
Title
2024-08-19
Xavier Mertens
Do you Like Donuts? Here is a Donut Shellcode Delivered Through PowerShell/Python
2024-08-14
Xavier Mertens
Multiple Malware Dropped Through MSI Package
2024-03-28
Xavier Mertens
From JavaScript to AsyncRAT
2024-02-09
Xavier Mertens
MSIX With Heavily Obfuscated PowerShell Script
2024-01-26
Xavier Mertens
A Batch File With Multiple Payloads
2024-01-12
Xavier Mertens
One File, Two Payloads
2024-01-05
Rob VandenBrink
Netstat, but Better and in PowerShell
2024-01-03
Jan Kopriva
Interesting large and small malspam attachments from 2023
2023-11-18
Xavier Mertens
Quasar RAT Delivered Through Updated SharpLoader
2023-09-09
Guy Bruneau
?Anyone get the ASN of the Truck that Hit Me?!?: Creating a PowerShell Function to Make 3rd Party API Calls for Extending Honeypot Information [Guest Diary]
2023-08-03
Jan Kopriva
From small LNK to large malicious BAT file with zero VT score
2023-07-28
Xavier Mertens
ShellCode Hidden with Steganography
2023-06-29
Brad Duncan
GuLoader- or DBatLoader/ModiLoader-style infection for Remcos RAT
2023-06-19
Xavier Mertens
Malware Delivered Through .inf File
2023-06-09
Xavier Mertens
Undetected PowerShell Backdoor Disguised as a Profile File
2023-05-17
Xavier Mertens
Increase in Malicious RAR SFX files
2023-04-19
Rob VandenBrink
Taking a Bite Out of Password Expiry Helpdesk Calls
2023-03-30
Xavier Mertens
Bypassing PowerShell Strong Obfuscation
2023-03-21
Didier Stevens
String Obfuscation: Character Pair Reversal
2023-03-16
Xavier Mertens
Simple Shellcode Dissection
2023-02-10
Xavier Mertens
Obfuscated Deactivation of Script Block Logging
2023-01-17
Rob VandenBrink
Finding that one GPO Setting in a Pool of Hundreds of GPOs
2023-01-04
Rob VandenBrink
Update to RTRBK - Diff and File Dates in PowerShell
2022-12-28
Rob VandenBrink
Playing with Powershell and JSON (and Amazon and Firewalls)
2022-11-09
Xavier Mertens
Another Script-Based Ransomware
2022-10-31
Rob VandenBrink
NMAP without NMAP - Port Testing and Scanning with PowerShell
2022-10-17
Xavier Mertens
Fileless Powershell Dropper
2022-10-07
Xavier Mertens
Powershell Backdoor with DGA Capability
2022-09-14
Xavier Mertens
Easy Process Injection within Python
2022-07-25
Xavier Mertens
PowerShell Script with Fileless Capability
2022-06-25
Xavier Mertens
Malicious Code Passed to PowerShell via the Clipboard
2022-06-22
Xavier Mertens
Malicious PowerShell Targeting Cryptocurrency Browser Extensions
2022-06-03
Xavier Mertens
Sandbox Evasion... With Just a Filename!
2022-05-12
Rob VandenBrink
When Get-WebRequest Fails You
2022-04-25
Xavier Mertens
Simple PDF Linking to Malicious Content
2022-03-31
Johannes Ullrich
Spring Vulnerability Update - Exploitation Attempts CVE-2022-22965
2022-03-30
Johannes Ullrich
Possible new Java Spring Framework Vulnerability (Updated: not a Spring problem)
2022-03-30
Johannes Ullrich
Java Springtime Confusion: What Vulnerability are We Talking About
2022-03-11
Xavier Mertens
Keep an Eye on WebSockets
2022-02-23
Johannes Ullrich
The Rise and Fall of log4shell
2022-01-22
Xavier Mertens
Mixed VBA & Excel4 Macro In a Targeted Excel Sheet
2022-01-20
Xavier Mertens
RedLine Stealer Delivered Through FTP
2022-01-17
Johannes Ullrich
Log4Shell Attacks Getting "Smarter"
2022-01-06
Xavier Mertens
Malicious Python Script Targeting Chinese People
2021-12-23
Johannes Ullrich
log4shell and cloud provider internal meta data services (IMDS)
2021-12-23
Johannes Ullrich
Defending Cloud IMDS Against log4shell (and more)
2021-12-21
Xavier Mertens
More Undetected PowerShell Dropper
2021-12-15
Xavier Mertens
Simple but Undetected PowerShell Backdoor
2021-12-14
Johannes Ullrich
Log4j: Getting ready for the long haul (CVE-2021-44228)
2021-12-11
Johannes Ullrich
Log4j / Log4Shell Followup: What we see and how to defend (and how to access our data)
2021-12-10
Xavier Mertens
Python Shellcode Injection From JSON Data
2021-12-10
Bojan Zdrnja
RCE in log4j, Log4Shell, or how things can get bad quickly
2021-12-07
Johannes Ullrich
Webshells, Webshells everywhere!
2021-11-15
Rob VandenBrink
Changing your AD Password Using the Clipboard - Not as Easy as You'd Think!
2021-10-18
Xavier Mertens
Malicious PowerShell Using Client Certificate Authentication
2021-10-01
Xavier Mertens
New Tool to Add to Your LOLBAS List: cvtres.exe
2021-08-20
Xavier Mertens
Waiting for the C2 to Show Up
2021-08-09
Jan Kopriva
ProxyShell - how many Exchange servers are affected and where are they?
2021-05-28
Xavier Mertens
Malicious PowerShell Hosted on script.google.com
2021-05-18
Xavier Mertens
From RunDLL32 to JavaScript then PowerShell
2021-05-06
Xavier Mertens
Alternative Ways To Perform Basic Tasks
2021-04-08
Xavier Mertens
Simple Powershell Ransomware Creating a 7Z Archive of your Files
2021-02-12
Xavier Mertens
AgentTesla Dropped Through Automatic Click in Microsoft Help File
2021-02-01
Rob VandenBrink
Taking a Shot at Reverse Shell Attacks, CNC Phone Home and Data Exfil from Servers
2021-01-21
Xavier Mertens
Powershell Dropping a REvil Ransomware
2021-01-18
Didier Stevens
Doc & RTF Malicious Document
2021-01-10
Didier Stevens
Maldoc Analysis With CyberChef
2021-01-09
Didier Stevens
Maldoc Strings Analysis
2020-12-24
Xavier Mertens
Malicious Word Document Delivering an Octopus Backdoor
2020-11-30
Didier Stevens
Decrypting PowerShell Payloads (video)
2020-11-25
Xavier Mertens
Live Patching Windows API Calls Using PowerShell
2020-11-19
Xavier Mertens
PowerShell Dropper Delivering Formbook
2020-11-05
Xavier Mertens
Did You Spot "Invoke-Expression"?
2020-09-24
Xavier Mertens
Party in Ibiza with PowerShell
2020-09-23
Xavier Mertens
Malicious Word Document with Dynamic Content
2020-09-11
Rob VandenBrink
What's in Your Clipboard? Pillaging and Protecting the Clipboard
2020-09-02
Xavier Mertens
Python and Risky Windows API Calls
2020-08-28
Xavier Mertens
Example of Malicious DLL Injected in PowerShell
2020-08-20
Rob VandenBrink
Office 365 Mail Forwarding Rules (and other Mail Rules too)
2020-08-06
Xavier Mertens
A Fork of the FTCode Powershell Ransomware
2020-08-03
Xavier Mertens
Powershell Bot with Multiple C2 Protocols
2020-07-27
Didier Stevens
Analyzing Metasploit ASP .NET Payloads
2020-07-19
Guy Bruneau
Scanning Activity for ZeroShell Unauthenticated Access
2020-06-12
Xavier Mertens
Malicious Excel Delivering Fileless Payload
2020-05-15
Rob VandenBrink
Hashes in PowerShell
2020-05-15
Rob VandenBrink
SHA3 Hashes (on Windows) - Where Art Thou?
2020-04-27
Xavier Mertens
Powershell Payload Stored in a PSCredential Object
2020-04-24
Xavier Mertens
Malicious Excel With a Strong Obfuscation and Sandbox Evasion
2020-04-17
Xavier Mertens
Weaponized RTF Document Generator & Mailer in PowerShell
2020-04-10
Xavier Mertens
PowerShell Sample Extracting Payload From SSL
2020-02-28
Xavier Mertens
Show me Your Clipboard Data!
2020-01-23
Xavier Mertens
Complex Obfuscation VS Simple Trick
2019-12-26
Xavier Mertens
Bypassing UAC to Install a Cryptominer
2019-12-09
Didier Stevens
(Lazy) Sunday Maldoc Analysis
2019-10-27
Didier Stevens
Using scdbg to Find Shellcode
2019-10-25
Rob VandenBrink
More on DNS Archeology (with PowerShell)
2019-09-17
Rob VandenBrink
Investigating Gaps in your Windows Event Logs
2019-07-28
Didier Stevens
Video: Analyzing Compressed PowerShell Scripts
2019-07-11
Xavier Mertens
Russian Dolls Malicious Script Delivering Ursnif
2019-07-10
Rob VandenBrink
Dumping File Contents in Hex (in PowerShell)
2019-06-28
Rob VandenBrink
Verifying Running Processes against VirusTotal - Domain-Wide
2019-06-27
Rob VandenBrink
Finding the Gold in a Pile of Pennies - Long Tail Analysis in PowerShell
2019-06-21
Rob VandenBrink
Netstat Local and Remote -new and improved, now with more PowerShell!
2019-06-03
Didier Stevens
Tip: BASE64 Encoded PowerShell Scripts are Recognizable by the Amount of Letter As
2019-05-31
Didier Stevens
Retrieving Second Stage Payload with Ncat
2019-05-30
Didier Stevens
Analyzing First Stage Shellcode
2019-05-28
Didier Stevens
Office Document & BASE64? PowerShell!
2019-04-25
Rob VandenBrink
Service Accounts Redux - Collecting Service Accounts with PowerShell
2019-04-24
Rob VandenBrink
Where have all the Domain Admins gone? Rooting out Unwanted Domain Administrators
2019-04-04
Xavier Mertens
New Waves of Scans Detected by an Old Rule
2019-03-30
Didier Stevens
"404" is not Malware
2019-03-20
Rob VandenBrink
Using AD to find hosts that aren't in AD - fun with the [IPAddress] construct!
2019-03-10
Didier Stevens
Malicious HTA Analysis by a Reader
2019-03-10
Didier Stevens
Quick and Dirty Malicious HTA Analysis
2019-03-05
Rob VandenBrink
Powershell, Active Directory and the Windows Host Firewall
2019-02-21
Xavier Mertens
Simple Powershell Keyloggers are Back
2019-02-17
Didier Stevens
Video: Finding Property Values in Office Documents
2019-02-16
Didier Stevens
Finding Property Values in Office Documents
2019-02-10
Didier Stevens
Video: Maldoc Analysis of the Weekend
2019-02-09
Didier Stevens
Maldoc Analysis of the Weekend
2019-01-24
Brad Duncan
Malspam with Word docs uses macro to run Powershell script and steal system data
2019-01-14
Rob VandenBrink
Microsoft LAPS - Blue Team / Red Team
2019-01-02
Didier Stevens
Maldoc with Nonfunctional Shellcode
2019-01-02
Xavier Mertens
Malicious Script Leaking Data via FTP
2018-12-19
Xavier Mertens
Restricting PowerShell Capabilities with NetSh
2018-12-15
Didier Stevens
De-DOSfuscation Example
2018-12-12
Didier Stevens
Yet Another DOSfuscation Sample
2018-12-03
Didier Stevens
Word maldoc: yet another place to hide a command
2018-11-27
Xavier Mertens
More obfuscated shell scripts: Fake MacOS Flash update
2018-11-26
Xavier Mertens
Obfuscated bash script targeting QNap boxes
2018-11-22
Xavier Mertens
Divided Payload in Multiple Pasties
2018-11-16
Xavier Mertens
Basic Obfuscation With Permissive Languages
2018-11-06
Xavier Mertens
Malicious Powershell Script Dissection
2018-10-26
Xavier Mertens
Dissecting Malicious Office Documents with Linux
2018-10-22
Xavier Mertens
Malicious Powershell using a Decoy Picture
2018-09-30
Didier Stevens
When DOSfuscation Helps...
2018-09-24
Didier Stevens
Analyzing Encoded Shellcode with scdbg
2018-09-08
Didier Stevens
Video: Using scdbg to analyze shellcode
2018-09-05
Xavier Mertens
Malicious PowerShell Compiling C# Code on the Fly
2018-09-03
Didier Stevens
Another quickie: Using scdbg to analyze shellcode
2018-08-31
Jim Clausing
Quickie: Using radare2 to disassemble shellcode
2018-07-30
Didier Stevens
Malicious Word documents using DOSfuscation
2018-07-26
Xavier Mertens
Windows Batch File Deobfuscation
2018-06-19
Xavier Mertens
PowerShell: ScriptBlock Logging... Or Not?
2018-06-04
Rob VandenBrink
Digging into Authenticode Certificates
2018-05-19
Xavier Mertens
Malicious Powershell Targeting UK Bank Customers
2018-05-09
Xavier Mertens
Nice Phishing Sample Delivering Trickbot
2018-05-06
Guy Bruneau
Scans Attempting to use PowerShell to Download PHP Script
2018-03-04
Xavier Mertens
The Crypto Miners Fight For CPU Cycles
2017-11-29
Xavier Mertens
Fileless Malicious PowerShell Sample
2017-11-15
Xavier Mertens
If you want something done right, do it yourself!
2017-11-11
Xavier Mertens
Keep An Eye on your Root Certificates
2017-10-31
Xavier Mertens
Some Powershell Malicious Code
2017-09-14
Xavier Mertens
Another webshell, another backdoor!
2017-09-11
Russ McRee
Windows Auditing with WINspect
2017-08-23
Xavier Mertens
Malicious script dropping an executable signed by Avast?
2017-08-20
Didier Stevens
It's Not An Invoice ...
2017-08-01
Rob VandenBrink
Rooting Out Hosts that Support Older Samba Versions
2017-05-12
Xavier Mertens
When Bad Guys are Pwning Bad Guys...
2017-05-03
Bojan Zdrnja
Powershelling with exploits
2017-03-30
Xavier Mertens
Diverting built-in features for the bad
2017-02-28
Xavier Mertens
Analysis of a Simple PHP Backdoor
2017-02-17
Rob VandenBrink
RTRBK - Router / Switch / Firewall Backups in PowerShell (tool drop)
2016-12-02
Rob VandenBrink
Protecting Powershell Credentials (NOT)
2016-11-24
Didier Stevens
Extracting Shellcode From JavaScript
2016-11-23
Tom Webb
Mapping Attack Methodology to Controls
2016-11-18
Didier Stevens
VBA Shellcode and Windows 10
2016-10-31
Russ McRee
SEC505 DFIR capture script: snapshot.ps1
2016-07-13
Xavier Mertens
The Power of Web Shells
2016-06-03
Tom Liston
MySQL is YourSQL
2016-04-28
Rob VandenBrink
DNS and DHCP Recon using Powershell
2016-04-15
Xavier Mertens
Windows Command Line Persistence?
2016-01-26
Rob VandenBrink
Pentest Time Machine: NMAP + Powershell + whatever tool is next
2016-01-25
Rob VandenBrink
Assessing Remote Certificates with Powershell
2016-01-19
Rob VandenBrink
Powershell and HTTPS ? It Ain?t All Rainbows And Lollipops! (or is it?)
2016-01-06
Russ McRee
toolsmith #112: Red vs Blue - PowerSploit vs PowerForensics
2015-12-14
Russ McRee
AD Security's Unofficial Guide to Mimikatz & Command Reference
2015-12-10
Rob VandenBrink
Uninstalling Problem Applications using Powershell
2015-12-09
Xavier Mertens
Enforcing USB Storage Policy with PowerShell
2015-12-02
Rob VandenBrink
Nessus and Powershell is like Chocolate and Peanut Butter!
2015-08-12
Rob VandenBrink
Windows Service Accounts - Why They're Evil and Why Pentesters Love them!
2015-06-29
Rob VandenBrink
The Powershell Diaries 2 - Software Inventory
2015-06-24
Rob VandenBrink
The Powershell Diaries - Finding Problem User Accounts in AD
2015-03-30
Didier Stevens
YARA Rules For Shellcode
2015-02-03
Johannes Ullrich
Another Network Forensic Tool for the Toolbox - Dshell
2014-10-24
Kevin Liston
Shellshock via SMTP
2014-10-23
Russ McRee
Digest: 23 OCT 2014
2014-10-06
Johannes Ullrich
Shellshock: More details released about CVE-2014-6277 and CVE-2014-6278. Also: Does Windows have a shellshock problem?
2014-10-01
Russ McRee
Security Onion news: Updated ShellShock detection scripts for Bro
2014-09-29
Johannes Ullrich
Apple Released Update to Fix Shellshock Vulnerability http://support.apple.com/kb/DL1769
2014-09-25
Johannes Ullrich
Update on CVE-2014-6271: Vulnerability in bash (shellshock)
2014-04-06
Basil Alawi S.Taher
"Power Worm" PowerShell based Malware
2013-10-26
Guy Bruneau
Active Perl/Shellbot Trojan
2013-06-25
Bojan Zdrnja
The race for resources
2013-02-28
Daniel Wesemann
Parsing Windows Eventlogs in Powershell
2012-04-25
Daniel Wesemann
Blacole's shell code
2011-11-10
Rob VandenBrink
Stuff I Learned Scripting - - Parsing XML in a One-Liner
2009-10-17
Rick Wanner
Cyber Security Awareness Month - Day 17 - Port 22/SSH
2009-07-05
Bojan Zdrnja
More on ColdFusion hacks
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