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Handler on Duty:
Guy Bruneau
Threat Level:
green
Date
Author
Title
SSH WORM
2026-02-11
Guy Bruneau
Four Seconds to Botnet - Analyzing a Self Propagating SSH Worm with Cryptographically Signed C2 [Guest Diary]
SSH
2026-02-11/a>
Guy Bruneau
Four Seconds to Botnet - Analyzing a Self Propagating SSH Worm with Cryptographically Signed C2 [Guest Diary]
2025-07-06/a>
Johannes Ullrich
A few interesting and notable ssh/telnet usernames
2025-06-13/a>
Jesse La Grew
[Guest Diary] Anatomy of a Linux SSH Honeypot Attack: Detailed Analysis of Captured Malware
2025-06-02/a>
Xavier Mertens
Simple SSH Backdoor
2025-05-27/a>
Johannes Ullrich
Securing Your SSH authorized_keys File
2025-05-22/a>
Johannes Ullrich
Resilient Secure Backup Connectivity for SMB/Home Users
2025-05-08/a>
Xavier Mertens
No Internet Access? SSH to the Rescue!
2025-04-06/a>
Johannes Ullrich
New SSH Username Report
2024-12-24/a>
Xavier Mertens
More SSH Fun!
2024-12-20/a>
Xavier Mertens
Christmas "Gift" Delivered Through SSH
2024-10-16/a>
Johannes Ullrich
The Top 10 Not So Common SSH Usernames and Passwords
2024-10-07/a>
Xavier Mertens
macOS Sequoia: System/Network Admins, Hold On!
2024-07-23/a>
Johannes Ullrich
New Exploit Variation Against D-Link NAS Devices (CVE-2024-3273)
2024-07-01/a>
Johannes Ullrich
SSH "regreSSHion" Remote Code Execution Vulnerability in OpenSSH.
2024-04-01/a>
Bojan Zdrnja
The amazingly scary xz sshd backdoor
2024-01-02/a>
Johannes Ullrich
Fingerprinting SSH Identification Strings
2022-12-03/a>
Guy Bruneau
Linux LOLBins Applications Available in Windows
2022-07-23/a>
Guy Bruneau
Analysis of SSH Honeypot Data with PowerBI
2022-02-01/a>
Xavier Mertens
Automation is Nice But Don't Replace Your Knowledge
2022-01-16/a>
Guy Bruneau
10 Most Popular Targeted Ports in the Past 3 Weeks
2021-11-08/a>
Xavier Mertens
(Ab)Using Security Tools & Controls for the Bad
2021-10-14/a>
Xavier Mertens
Port-Forwarding with Windows for the Win
2020-07-21/a>
Jan Kopriva
Couple of interesting Covid-19 related stats
2020-03-02/a>
Jan Kopriva
Secure vs. cleartext protocols - couple of interesting stats
2019-03-09/a>
Guy Bruneau
A Comparison Study of SSH Port Activity - TCP 22 & 2222
2018-11-07/a>
Bojan Zdrnja
Tunneling scanners (or really anything) over SSH
2018-08-20/a>
Didier Stevens
OpenSSH user enumeration (CVE-2018-15473)
2018-01-07/a>
Guy Bruneau
SSH Scans by Clients Types
2017-11-01/a>
Rob VandenBrink
Securing SSH Services - Go Blue Team!!
2016-03-15/a>
Xavier Mertens
Dockerized DShield SSH Honeypot
2016-03-13/a>
Xavier Mertens
SSH Honeypots (Ab)used as Proxy
2016-01-21/a>
Jim Clausing
Scanning for Fortinet ssh backdoor
2015-06-23/a>
Kevin Shortt
XOR DDOS Mitigation and Analysis
2015-04-03/a>
Didier Stevens
SSH Fingerprints Are Important
2014-07-23/a>
Johannes Ullrich
New Feature: "Live" SSH Brute Force Logs and New Kippo Client
2014-07-02/a>
Johannes Ullrich
Cisco Unified Communications Domain Manager Update
2014-06-11/a>
Daniel Wesemann
Gimme your keys!
2014-01-20/a>
Rob VandenBrink
You Can Run, but You Can't Hide (SSH and other open services)
2013-12-20/a>
Daniel Wesemann
authorized key lime pie
2013-12-02/a>
Richard Porter
Reports of higher than normal SSH Attacks
2013-11-11/a>
Johannes Ullrich
OpenSSH Vulnerability
2013-10-10/a>
Mark Hofman
CSAM Some more unusual scans
2013-06-23/a>
Kevin Liston
Is SSH no more secure than telnet?
2013-02-21/a>
Bojan Zdrnja
SSHD rootkit in the wild
2013-01-26/a>
Scott Fendley
Blocking SSH to Limit Security Exposures
2012-12-27/a>
John Bambenek
It's 3pm 2 days after Christmas, do you know where your unmanaged SSH keys are?
2012-12-16/a>
Tony Carothers
SSH Brute Force on Non-Standard Ports
2012-12-03/a>
Kevin Liston
Recent SSH vulnerabilities
2012-06-12/a>
Swa Frantzen
F5 ssh configuration goof
2011-12-04/a>
Guy Bruneau
SSH Password Brute Forcing may be on the Rise
2011-11-06/a>
Tom Liston
New, odd SSH brute force behavior
2011-09-15/a>
Johannes Ullrich
SSH Vandals?
2011-08-02/a>
Mark Hofman
SSH Brute Force attacks
2011-07-31/a>
Daniel Wesemann
Anatomy of a Unix breach
2011-07-17/a>
Mark Hofman
SSH Brute Force
2011-03-07/a>
Johannes Ullrich
Outbound SSH Traffic from HP Virtual Connect Blades
2011-02-05/a>
Guy Bruneau
OpenSSH Legacy Certificate Information Disclosure Vulnerability
2010-09-07/a>
Bojan Zdrnja
SSH password authentication insight and analysis by DRG
2010-08-10/a>
Daniel Wesemann
Protect your privates!
2010-08-10/a>
Daniel Wesemann
SSH - new brute force tool?
2010-06-18/a>
Adrien de Beaupre
Distributed SSH Brute Force Attempts on the rise again
2010-06-18/a>
Tom Liston
IMPORTANT INFORMATION: Distributed SSH Brute Force Attacks
2010-01-18/a>
Stephen Hall
Uplift in SSH brute forcing attacks
2010-01-01/a>
G. N. White
Dealing With Unwanted SSH Bruteforcing
2009-10-17/a>
Rick Wanner
Cyber Security Awareness Month - Day 17 - Port 22/SSH
2009-10-02/a>
Stephen Hall
New version of OpenSSH released
2009-07-09/a>
Bojan Zdrnja
OpenSSH 0day FUD
2009-07-07/a>
Marcus Sachs
OpenSSH Rumors
2009-04-17/a>
Daniel Wesemann
Guess what? SSH again!
2009-04-07/a>
Johannes Ullrich
SSH scanning from compromised mail servers
2009-03-30/a>
Daniel Wesemann
Watch your Internet routers!
2008-10-02/a>
Kyle Haugsness
Low, slow, distributed SSH username brute forcing
2008-08-26/a>
John Bambenek
Active attacks using stolen SSH keys (UPDATED)
2008-06-09/a>
Scott Fendley
So Where Are Those OpenSSH Key-based Attacks?
2008-05-16/a>
Daniel Wesemann
INFOcon back to green
2008-05-15/a>
Bojan Zdrnja
Debian and Ubuntu users: fix your keys/certificates NOW
2008-05-15/a>
Bojan Zdrnja
INFOCon yellow: update your Debian generated keys/certs ASAP
2008-05-13/a>
Swa Frantzen
OpenSSH: Predictable PRNG in debian and ubuntu Linux
2008-05-12/a>
Scott Fendley
Brute-force SSH Attacks on the Rise
2006-10-03/a>
Swa Frantzen
Detecting attacks against servers
WORM
2026-02-11/a>
Guy Bruneau
Four Seconds to Botnet - Analyzing a Self Propagating SSH Worm with Cryptographically Signed C2 [Guest Diary]
2026-02-04/a>
Xavier Mertens
Malicious Script Delivering More Maliciousness
2025-02-19/a>
Xavier Mertens
XWorm Cocktail: A Mix of PE data with PowerShell Code
2024-08-26/a>
Xavier Mertens
From Highly Obfuscated Batch File to XWorm and Redline
2024-07-25/a>
Xavier Mertens
XWorm Hidden With Process Hollowing
2020-11-13/a>
Xavier Mertens
Old Worm But New Obfuscation Technique
2019-02-14/a>
Xavier Mertens
Old H-Worm Delivered Through GitHub
2018-06-13/a>
Remco Verhoef
From Microtik with Love
2014-04-06/a>
Basil Alawi S.Taher
"Power Worm" PowerShell based Malware
2013-11-03/a>
Jim Clausing
What were you doing 25 years ago (yesterday)?
2013-10-30/a>
Russ McRee
SIR v15: Five good reasons to leave Windows XP behind
2012-12-03/a>
John Bambenek
John McAfee Exposes His Location in Photo About His Being on Run
2012-11-29/a>
Kevin Shortt
New Apple Security Update: APPLE-SA-2012-11-29-1 Apple TV 5.1.1
2012-11-28/a>
Mark Hofman
McAfee releases extraDAT for W32/Autorun.worm.aaeb-h
2012-11-28/a>
Mark Hofman
New version of wireshark is available (1.8.4), some security fixes included.
2012-11-27/a>
Chris Mohan
Can users' phish emails be a security admin's catch of the day?
2012-11-26/a>
John Bambenek
Online Shopping for the Holidays? Tips, News and a Fair Warning
2012-11-20/a>
John Bambenek
Behind the Random NTP Bizarreness of Incorrect Year Being Set
2012-11-20/a>
John Bambenek
Firefox v 17.0 just released, more here: http://www.mozilla.org/en-US/firefox/17.0/releasenotes/
2012-11-19/a>
John Bambenek
MoneyGram fined $100 million for aiding wire fraud - http://krebsonsecurity.com/2012/11/moneygram-fined-100-million-for-wire-fraud/
2012-11-19/a>
John Bambenek
New Poll: Top 5 Unresolved Security Problems of 2012
2012-11-17/a>
Manuel Humberto Santander Pelaez
New Sysinternal Updates: AdExplorer v1.44, Contig v1.7, Coreinfo v3.2, Procdump v5.1. See http://blogs.technet.com/b/sysinternals/archive/2012/11/16/updates-adexplorer-v1-44-contig-v1-7-coreinfo-v3-2-procdump-v5-1.aspx?Redirected=true
2012-11-12/a>
John Bambenek
Request for info: Robocall Phishing Against Local/Regional Banks
2012-11-09/a>
Mark Baggett
Remote Diagnostics with PSR
2012-11-09/a>
Mark Baggett
Fresh batch of Microsoft patches next week
2012-11-07/a>
Mark Baggett
Help eliminate unquoted path vulnerabilities
2012-11-07/a>
Mark Baggett
Multiple 0-Days Reported!
2012-11-07/a>
Mark Baggett
Cisco TACACS+ Authentication Bypass
2012-11-05/a>
Johannes Ullrich
Reminder: Ongoing SMTP Brute Forcing Attacks
2012-11-05/a>
Johannes Ullrich
Possible Fake-AV Ads from Doubleclick Servers
2012-11-04/a>
Lorna Hutcheson
What's important on your network?
2012-10-31/a>
Johannes Ullrich
Cyber Security Awareness Month - Day 31 - Business Continuity and Disaster Recovery
2012-10-30/a>
Johannes Ullrich
Hurricane Sandy Update
2012-10-30/a>
Richard Porter
Splunk 5.0 SP-CAAAHB4 http://www.splunk.com/view/SP-CAAAHB4
2012-10-28/a>
Tony Carothers
Firefox 16.02 Released
2012-10-26/a>
Russ McRee
Cyber Security Awareness Month - Day 26 - Attackers use trusted domain to propagate Citadel Zeus variant
2012-10-25/a>
Richard Porter
Cyber Security Awareness Month - Day 25 - Pro Audio & Video Packets on the Wire
2012-10-24/a>
Russ McRee
Ongoing Windstream outage in the midwest - https://twitter.com/search?q=windstream
2012-10-21/a>
Johannes Ullrich
Cyber Security Awareness Month - Day 22: Connectors
2012-10-21/a>
Lorna Hutcheson
Potential Phish for Regular Webmail Accounts
2012-10-19/a>
Johannes Ullrich
Cyber Security Awareness Month - Day 19: Standard log formats and CEE.
2012-10-18/a>
Rob VandenBrink
Cyber Security Awareness Month - Day 18 - Vendor Standards: The vSphere Hardening Guide
2012-10-17/a>
Mark Hofman
New Acrobat release (including reader) available. Version 11. Some security improvements more here -->http://blogs.adobe.com/adobereader/
2012-10-16/a>
Richard Porter
CyberAwareness Month - Day 15, Standards Body Soup (pt2), Same Soup Different Cook.
2012-10-16/a>
Johannes Ullrich
Cyber Security Awareness Month - Day 16: W3C and HTML
2012-10-14/a>
Pedro Bueno
Cyber Security Awareness Month - Day 14 - Poor Man's File Analysis System - Part 1
2012-10-09/a>
Johannes Ullrich
Microsoft October 2012 Black Tuesday Update - Overview
2012-10-07/a>
Tony Carothers
Cyber Security Awareness Month - Day 7 - Rollup Review of CSAM Week 1
2012-10-05/a>
Johannes Ullrich
Cyber Security Awareness Month - Day 5: Standards Body Soup, So many Flavors in the bowl.
2012-10-05/a>
Richard Porter
VMWare Security Advisory: VMSA-2012-0014 - http://www.vmware.com/security/advisories/VMSA-2012-0014.html
2012-10-05/a>
Richard Porter
Reports of a Distributed Injection Scan
2012-10-04/a>
Mark Hofman
And the SHA-3 title goes to .....Keccak
2012-10-01/a>
Johannes Ullrich
Cyber Security Awareness Month
2012-09-28/a>
Joel Esler
Adobe certification revocation for October 4th
2012-09-26/a>
Johannes Ullrich
Some Android phones can be reset to factory default by clicking on links
2012-09-26/a>
Johannes Ullrich
More Java Woes
2012-09-21/a>
Johannes Ullrich
iOS 6 Security Roundup
2012-09-19/a>
Russ McRee
Script kiddie scavenging with Shellbot.S
2012-09-17/a>
Rob VandenBrink
What's on your iPad?
2012-09-14/a>
Lenny Zeltser
Scam Report - Fake Voice Mail Email Notification Redirects to Malicious Site
2012-09-13/a>
Mark Baggett
Microsoft disrupts traffic associated with the Nitol botnet
2012-09-13/a>
Mark Baggett
More SSL trouble
2012-09-10/a>
Johannes Ullrich
Microsoft Patch Tuesday Pre-Release
2012-09-10/a>
Johannes Ullrich
Godaddy DDoS Attack
2012-09-06/a>
Johannes Ullrich
SSL Requests sent to port 80 (request for help/input)
2012-09-04/a>
Johannes Ullrich
Another round of "Spot the Exploit E-Mail"
2012-09-02/a>
Lorna Hutcheson
Demonstrating the value of your Intrusion Detection Program and Analysts
2012-08-30/a>
Johannes Ullrich
Editorial: The Slumlord Approach to Network Security http://isc.sans.edu/j/editorial
2012-08-29/a>
Johannes Ullrich
"Data" URLs used for in-URL phishing
2012-08-27/a>
Johannes Ullrich
The Good, Bad and Ugly about Assigning IPv6 Addresses
2012-08-27/a>
Johannes Ullrich
Malware Spam harvesting Facebook Information
2012-08-26/a>
Lorna Hutcheson
Who ya gonna contact?
2012-08-20/a>
Manuel Humberto Santander Pelaez
Do we need test procedures in our companies before implementing Antivirus signatures?
2012-08-19/a>
Manuel Humberto Santander Pelaez
Authentication Issues between entities during protocol message exchange in SCADA Systems
2012-08-12/a>
Tony Carothers
Layers of the Defense-in-Depth Onion
2012-08-12/a>
Tony Carothers
Oracle Security Alert for CVE-2012-3132
2012-08-09/a>
Mark Hofman
Zeus/Citadel variant causing issues in the Netherlands
2012-08-09/a>
Mark Hofman
SQL Injection Lilupophilupop style, Part 2
2012-08-07/a>
Adrien de Beaupre
Who protects small business?
2012-08-04/a>
Kevin Liston
Vendors: More Patch-Release Options Please
2012-07-27/a>
Daniel Wesemann
Cuckoo 0.4 is out - cool new features for malware analysis http://www.cuckoosandbox.org/
2012-07-24/a>
Richard Porter
Wireshark 1.8.1 Released http://www.wireshark.org/
2012-07-24/a>
Richard Porter
Report of spike in DNS Queries gd21.net
2012-07-20/a>
Mark Baggett
Syria Internet connection cut?
2012-07-19/a>
Mark Baggett
Diagnosing Malware with Resource Monitor
2012-07-19/a>
Mark Baggett
A Heap of Overflows?
2012-07-16/a>
Richard Porter
Sysinternals Update @ http://blogs.technet.com/b/sysinternals/archive/2012/07/16/updates-handle-v3-5-process-explorer-v15-22-process-monitor-v3-03-rammap-v1-21-zoomit-v4-3.aspx
2012-07-13/a>
Richard Porter
Yesterday (not as on the ball as Rob) at SANSFire
2012-07-12/a>
Rick Wanner
Cisco Security Advisory: Multiple Vulnerabilities in Cisco TelePresence Multipoint Switch - http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctms
2012-07-12/a>
Rick Wanner
Cisco Security Advisory: Multiple Vulnerabilities in Cisco TelePresence Recording Server - http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctrs
2012-07-12/a>
Rick Wanner
Cisco Security Advisory: Multiple Vulnerabilities in Cisco TelePresence Immersive Endpoint Devices - http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-cts
2012-07-12/a>
Rick Wanner
Cisco Security Advisory: Multiple Vulnerabilities in Cisco TelePresence Manager - http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctsman
2012-07-09/a>
Johannes Ullrich
The FBI will turn off the Internet on Monday (or not)
2012-07-09/a>
Manuel Humberto Santander Pelaez
Internet Storm Center panel tonight at SANSFIRE 2012!
2012-07-02/a>
Joel Esler
A rough guide to keeping your website up
2012-07-02/a>
Joel Esler
Linux & Java leap second bug
2012-06-29/a>
Jim Clausing
Updated SysInternals tools - Autoruns, Process Explorer, Process Monitor, PSKill -- http://blogs.technet.com/b/sysinternals/archive/2012/06/28/updates-autoruns-v11-32-process-explorer-v15-21-process-monitor-v3-02-pskill-v1-15-rammap-v1-2.aspx
2012-06-21/a>
Russ McRee
Wireshark 1.8.0 released 21 JUN 2012 http://www.wireshark.org/download.html
2012-06-19/a>
Daniel Wesemann
Vulnerabilityqueerprocessbrittleness
2011-11-18/a>
Kevin Liston
Fujacks Variant Using ACH Lure
2011-01-20/a>
Manuel Humberto Santander Pelaez
Possible new Twitter worm
2010-06-14/a>
Manuel Humberto Santander Pelaez
Rogue facebook application acting like a worm
2009-11-08/a>
Bojan Zdrnja
iPhone worm in the wild
2009-08-25/a>
Bojan Zdrnja
Flash attack vectors (and worms)
2009-05-20/a>
Pedro Bueno
Cyber Warfare and Kylin thoughts
2009-04-13/a>
Bojan Zdrnja
Twitter worm copycats
2009-04-12/a>
Patrick Nolan
Twitter Worm(s)
2008-07-04/a>
Kevin Liston
Storm Botnet Celebrates Birthday With Fireworks
2008-06-02/a>
donald smith
New Stormworm download site
2008-04-03/a>
Bojan Zdrnja
VB detection: is it so difficult?
2006-12-18/a>
Toby Kohlenberg
Skype worm
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