📔
Defense
  • Defense
  • Getting Started
    • Introductory Networking
      • Introduction
      • The OSI Model: An Overview
        • Answers
      • Encapsulation
        • Answers
      • The TCP/IP Model
        • Answers
      • Wireshark
        • Answers
      • Networking Tools - Ping
        • Answers
      • Networking Tools - Traceroute
        • Answers
      • Networking Tools - WHOIS
        • Answers
      • Networking Tools Dig
        • Answers
      • Further Reading
    • Network Services
      • Understanding SMB
        • Answers
      • Enumerating SMB
        • Answers
        • Untitled
      • Exploiting SMB
        • Answers
        • Untitled
      • Understanding Telnet
        • Answers
      • Enumerating Telnet
        • Answers
        • Untitled
      • Exploiting Telnet
        • Answers
        • Untitled
      • Understanding FTP
        • Answers
      • Enumerating FTP
        • Answers
        • Untitled
      • Exploiting FTP
        • Answers
        • Untitled
      • Expanding Your Knowledge
    • Network Services 2
      • Understanding NFS
        • Answers
      • Enumerating NFS
        • Answers
        • Untitled
      • Exploiting NFS
        • Answers
        • Untitled
      • Understanding SMTP
        • Answers
      • Enumerating SMTP
        • Answers
        • Untitled
      • Exploiting SMTP
        • Answers
        • Untitled
      • Understanding MYSQL
        • Answers
      • Enumerating MYSQL
        • Answers
        • Untitled
      • Exploiting MYSQL
        • Answers
        • Untitled
      • Further Learning
    • Wireshark 101
      • Introduction
      • Installation
      • Wireshark Overview
      • Collection Methods
      • Filtering Packets
      • Packet Dissection
      • ARP Traffic
        • Answers
      • ICMP Overview
        • Answers
      • TCP Traffic
      • DNS Traffic
        • Answers
      • HTTP Traffic
        • Answers
      • HTTPS Traffic
        • Answers
      • Analyzing Exploit PCAPS
      • Conclusion
    • !Intro to Windows
    • Active Directory Basics
      • Introduction
      • Physical Active Directory
        • Answers
      • The Forest
        • Answers
      • Users + Groups
        • Answers
      • Trusts + Policies
        • Answers
      • Active Directory Domain Services + Authentication
        • Answers
      • AD in the Cloud
        • Answers
      • Hands-On Lab
        • Answers
        • Untitled
      • Conclusion
    • !Windows Core Processes
    • !SysInternals
  • Threat and Vulnerability Management
    • !Nessus
      • Introduction
      • Installation
      • !Navigation and Scans
        • Answers
      • !Scanning
      • !Scanning a Web Application
    • MITRE
      • Introduction to Mitre
      • Basic Terminology
      • ATT&CK Framework
        • Answers
      • CAR Knowledge Base
        • Answers
      • Shield Active Defense
        • Answers
      • ATT&CK EmulationPlans
        • Answers
      • ATT&CK® and Threat Intelligence
        • Answers
      • Conclusion
    • Yara
      • Introduction
      • What is Yara?
        • Answers
      • Installing Yara (Ubuntu/Debian & Windows)
      • Deploy
      • Introduction to Yara Rules
      • Expanding on Yara Rules
      • Yara Modules
      • Other Tools and Yara
      • Using LOKI and its Yara rule set
        • Answers
        • Untitled
      • Creating Yara rules with yarGen
        • Answers
        • Untitled
      • Valhalla
        • Answers
      • Conclusion
    • Intro to ISAC
      • Introduction
      • Basic Terminology
      • What is Threat Intelligence?
      • What are ISACs?
      • Using Threat Connect to create a Threat Intel dashboard
      • Introduction to AlienVault OTX
      • Using OTX to gather Threat Intelligence
      • Creating IOCs
      • Investigating IOCs
        • Answers
    • Zero Logon
      • The Zero Day Angle
      • Impacket Installation
      • The Proof of Concept
        • Answers
      • Lab it up!
        • Answers
        • Untitled
    • !OpenVAS
    • !MISP
  • Security Operations and Monitoring
    • Splunk
    • Windows Event Logs
    • Sysmon
    • Suricata
    • Osquery
    • Graylog
    • OpenEDR
  • Threat Emulation
    • Attacktive Directory
    • Attacking Kerberos
    • Atomic Red Team
  • Incident Response and Forensics
    • Volatility
    • Forensics
    • Investigating Windows
    • Windows Forensics
    • Redline
    • Autopsy
  • Malware Analysis and Reverse Engineering
    • History of Malware
    • Malware Introductory
    • Researching
    • Strings
    • Basic Malware RE
    • REMnux: The Redux
    • Reversing .NET Apps
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  1. Threat and Vulnerability Management
  2. Yara
  3. Valhalla

Answers

Enter the SHA256 hash of file 1 into Valhalla. Is this file attributed to an APT group? (Yay/Nay) (5479f8cd1375364770df36e5a18262480a8f9d311e8eedb2c2390ecb233852ad) Yay

Do the same for file 2. What is the name of the first Yara rule to detect file 2? (53fe44b4753874f079a936325d1fdc9b1691956a29c3aaf8643cdbd49f5984bf) Webshell_b374k_rule1

Examine the information for file 2 from Virus Total (VT). The Yara Signature Match is from what scanner? THOR APT Scanner

Enter the SHA256 hash of file 2 into Virus Total. Did every AV detect this as malicious? (Yay/Nay) Nay

Besides .PHP, what other extension is recorded for this file? exe

Back to Valhalla, inspect the Info for this rule. Under Statistics what was the highest rule match per month in the last 2 years? (YYYY/M) 2020/5

What JavaScript library is used by file 2? zepto

Is this Yara rule in the default Yara file Loki uses to detect these type of hack tools? (Yay/Nay) Nay

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Last updated 4 years ago

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