SANS ISC: Internet Security | DShield

• SANS Site Network
  • Current Site
  • SANS Internet Storm Center
  • Other SANS Sites Help
  • Graduate Degree Programs
  • Security Training
  • Security Certification
  • Security Awareness Training
  • Penetration Testing
  • Industrial Control Systems
  • Cyber Defense Foundations
  • DFIR
  • Software Security
  • Government OnSite Training

ISC Handlers

Guy has a B.A. (IT) from University of Quebec and holds the prestigious GIAC Security Expert (GSE) certification as well as the GIAC GSEC(G), GCIA(G), GCIH(G), GCUX(G), GCFA, GPEN certifications.

Click to  View Handler Page

Click to  View Handler Created Tools

Recent Diaries:

• 10 Most Popular Targeted Ports in the Past 3 Weeks
• Exchange Server - Email Trapped in Transport Queues
• A Review of Year 2021
• Searching for Exposed ASUS Routers Vulnerable to CVE-2021-20090
• Hikvision Security Cameras Potentially Exposed to Remote Code Execution

Click to  View Handler Page

Recent Diaries:

• Is this traffic bAD?
• Update: mac-robber.py
• Strange goings on with port 37
• Wireshark 3.4.6 (and 3.2.14) released
• So where did those Satori attacks come from?

Recent Diaries:

• 0.0.0.0 in Emotet Spambot Traffic
• Agent Tesla Updates SMTP Data Exfiltration Technique
• December 2021 Forensic Contest: Answers and Analysis
• How the "Contact Forms" campaign tricks people
• December 2021 Forensic Challenge

Recent Diaries:

• Warranty Repairs and Non-Removable Storage Risks
• Apple May 2021 Security Updates
• Critical Vuln in vCenter vmdir (CVE-2020-3952)
• Oracle Critical Patch Update Release
• Gate to Fiesta exploit kit on 94.242.216.69

Recent Diaries:

• Phishing e-mail with...an advertisement?
• Do you want your Agent Tesla in the 300 MB or 8 kB package?
• PowerPoint attachments, Agent Tesla and code reuse in malware
• Phishing page hiding itself using dynamically adjusted IP-based allow list
• TLS 1.3 and SSL - the current state of affairs

Renato Marinho is Chief Research Officer at Morphus Labs. His journey in the area began in 2001, when he created Nettion, one of the first firewalls to use the contemporary UTM (Unified Threat Management) concept. Experienced in cyber security, Marinho was internationally recognized in 2016 by his research that unveiled Mamba, the first full disk encryption ransomware. At Morphus Labs, he oversees research, innovation and development of new products. Master and PhD candidate in Applied Informatics, he is also professor at University of Fortaleza teaching Computer Forensics in the post-graduate course. He is also a speaker having presented at Ignite Cybersecurity Conference, BSides Delaware, BSides Vienna, WSKS Portugal and Brazilian CSIRTs Forum.

Recent Diaries:

• Attackers are abusing MSBuild to evade defenses and implant Cobalt Strike beacons
• Example of how attackers are trying to push crypto miners via Log4Shell
• Log4j 2.15.0 and previously suggested mitigations may not be enough
• Microsoft December 2021 Patch Tuesday
• Log4Shell exploited to implant coin miners

Click to  View Handler Created Tools

Recent Diaries:

• Log4j 2 Security Vulnerabilities Update Guide
• LotL Classifier tests for shells, exfil, and miners
• Adversary Simulation with Sim
• Gordon for fast cyber reputation checks
• Sooty: SOC Analyst's All-in-One Tool

Xavier Mertens is a freelance security consultant based in Belgium. Xavier's own company (https://xameco.be) offers services like incident handling, forensic, SOC activities, and pentesting. He holds GCIA, GFCE, GCFA, GXPN, GREM, GDAT, GNFA, GCTI, GPYC SANS certifications but also CISSP, and CISA. Xavier is a SANS Certified Instructor (FOR610 - Malware Analysis and Reverse Engineering). His blog about security is https://blog.rootshell.be and he is co-organizer of the BruCON security conference (http://www.brucon.org).

Recent Diaries:

• Mixed VBA & Excel4 Macro In a Targeted Excel Sheet
• Obscure Wininet.dll Feature?
• RedLine Stealer Delivered Through FTP
• Custom Python RAT Builder
• Malicious Python Script Targeting Chinese People

Click to  View Handler Created Tools

Recent Diaries:

• A Case for Lockdown and Isolation (and not the Covid kind)
• Microsoft April 2021 Patch Tuesday
• Building a .freq file with Public Domain Data Sources
• What is "THAT" Address Doing on my Network
• MSFT June 2019 Patch Tuesday

Recent Diaries:

• New Internet Storm Center Director
• A Day In The Life Of A DShield Sensor
• Stuxnet Analysis
• Cyber Security Awareness Month - Day 31 - Tying it all together
• Cyber Security Awareness Month - Day 15 - What Teachers Need to Know About Their Students

Mr. Santander Pelaez currently serves as the Chief Information Security Officer of Puntos Colombia S.A.S. . in Medellin,Colombia. His areas of interest are Intrusion Detection, Computer Forensics, Incident Response, SCADA Security, Network Design and cyberwarfare.

Recent Diaries:

• Creating patched binaries for pentesting purposes
• Performing deception to OS Fingerprint (Part 1: nmap)
• SNMP service: still opened to the public and still queried by attackers
• Enumerating office365 users
• Merry christmas!

Didier Stevens (Microsoft MVP Consumer Security) holds many certifications from SANS, Microsoft, Cisco, ... He is a Senior Analyst (NVISO https://www.nviso.be). Didier started his own company in 2012 to provide IT security training services (http://DidierStevensLabs.com). You can find his open source security tools on his IT security related blog at https://blog.DidierStevens.com.

Recent Diaries:

• Extracting Cobalt Strike Beacons from MSBuild Scripts
• TShark & jq
• Expect Regressions
• Quicktip: TShark's Options -e and -T
• TShark Tip: Extracting Field Values From Capture Files

Yee Ching is currently a Ph.D. student at ASSET (Automated Systems SEcuriTy) Research Group in the Singapore University of Technology and Design (SUTD) under the Information Systems Technology and Design (ISTD) Pillar. He was a recipient of the SG: Digital (SG:D) Postgraduate Scholarship program from Infocomm Media Development Authority (IMDA), and won the Cybersecurity Awards in 2019 under the Professional category for his contributions to the Singapore information security industry. Yee Ching is a SANS Lethal Forensicator and also serves as a Committee Member in the Association of Information Security Professionals (AiSP). For more information, please visit https://poppopretn.com/aboutme/.

Recent Diaries:

• Phishing Direct Messages via Discord
• Revisiting BrakTooth: Two Months Later
• Multiple Apple Patches for October 2021
• Hunting for Phishing Sites Masquerading as Outlook Web Access
• Keeping Track of Time: Network Time Protocol and a GPSD Bug

Dr. Johannes Ullrich is the Dean of Research and a faculty member of the SANS Technology Institute. In November of 2000, Johannes started the DShield.org project, which he later integrated into the Internet Storm Center. His work with the Internet Storm Center has been widely recognized. In 2004, Network World named him one of the 50 most powerful people in the networking industry. Secure Computing Magazine named him in 2005 one of the Top 5 influential IT security thinkers. His research interests include IPv6, Network Traffic Analysis and Secure Software Development. Johannes is regularly invited to speak at conferences and has been interviewed by major publications, radio as well as TV stations. He is a member of the SANS Technology Institute's Faculty and Administration as well as Curriculum and Long Range Planning Committee. As chief research officer for the SANS Institute, Johannes is currently responsible for the GIAC Gold program. Prior to working for SANS, Johannes worked as a lead support engineer for a Web development company and as a research physicist. Johannes holds a PhD in Physics from SUNY Albany and is located in Jacksonville, Florida. More Details: http://www.linkedin.com/in/johannesullrich

Click to  View Handler Page

Recent Diaries:

• Log4Shell Attacks Getting "Smarter"
• Use of Alternate Data Streams in Research Scans for index.jsp.
• A Quick CVE-2022-21907 FAQ
• Microsoft Patch Tuesday - January 2022
• Defending Cloud IMDS Against log4shell (and more)

Click to  View Handler Created Tools

Recent Diaries:

• DR Automation - Using Public DNS APIs
• Microsoft Out of Band Update Resolves Kerberos Issue
• Changing your AD Password Using the Clipboard - Not as Easy as You'd Think!
• Sorting Things Out - Sorting Data by IP Address
• SharpRDP - PSExec without PSExec, PSRemoting without PowerShell

Recent Diaries:

• Qiling: A true instrumentable binary emulation framework
• Sigma rules! The generic signature format for SIEM systems.
• Not so FastCGI!
• Annotating Golang binaries with Cutter and Jupyter
• Introduction to analysing Go binaries

Recent Diaries:

• New Windows Print Spooler Vulnerability - CVE-2021-34481
• Mitre CWE - Common Weakness Enumeration
• Quick and dirty Python: nmap
• Quick and dirty Python: masscan
• Important Apple Updates

Recent Diaries:

• Xmount for Disk Images
• Elastalert with Sigma
• Pi Zero HoneyPot
• TPOT's Cowrie to ISC Logs
• Using Shodan Monitoring

Recent Diaries:

• Open redirects ... and why Phishers love them
• Network Forensics on Azure VMs (Part #2)
• Network Forensics on Azure VMs (Part #1)
• Ransomware Defenses
• Exposed Azure Storage Containers

Click to  View Handler Created Tools

Recent Diaries:

• RCE in log4j, Log4Shell, or how things can get bad quickly
• Active Directory Certificate Services (ADCS - PKI) domain admin vulnerability
• Summer of SAM - incorrect permissions on Windows 10/11 hives
• Abusing Google Chrome extension syncing for data exfiltration and C&C
• Dynamically analyzing a heavily obfuscated Excel 4 macro malicious file