MISP Style Guide

Rectifyq’s MISP Style Guide

Traffic Light Protocol (TLP)

TLP	Formal Definition	Rectifyq’s audience
🔴 tlp:red	For the eyes and ears of individual recipients only, no further disclosure.	Rectifyq + specific recipients
🟠 tlp:amber	Limited disclosure, recipients can only spread this on a need-to-know basis within their organization and its clients.	Rectifyq + Cyberheroes
🟢 tlp:green	Limited disclosure, recipients can spread this within their community.	Rectifyq + Cyberheroes + Cybervigilantes
⚪ tlp:clear	Information can be shared publicly in accordance with the law.	Everyone

Severity definition

Severity	Description	Example
High	State sponsored TA APT + targeted Custom malware/tool + targeted 0day + exploited in wild	Lazarus APT (North Korea) FIN7 + target company A Custom and targeting company A Currently being exploited
Medium	APT + broad-based Ransomware (Threat & Data Breach) Tool Profile Supply chain related 0day + POC Critical/High/Branded Vulnerability	FIN7 + Multiple countries Any ransomware related Any tool profiles Any supply chain related No actual case reported yet Vuln focused w malware sample(s) exploiting it
Low	Cybercrime - broad-based Commodity malware Infostealer leaks	Phishing, clickfix, defacements campaigns Infostealer, clickfix, etc Lumma stealer, redline, vidar, etc
Undefined	News article Indictment Achievement To be removed	Other articles that may still be interesting to be recorded.

APT definition - Advanced Persistence Threat. Not only limited to State Sponsored.

Category

Category	Descriptio
Threat	In-depth analysis of specific cyber threats. The focus is on technical details, including Indicators of Compromise (IOCs) and the Tactics, Techniques, and Procedures (TTPs) utilized by threat actors.
Data Breach	Articles covering confirmed or alleged incidents of unauthorized data access or exfiltration. Key content focuses on the scope of the compromised data, affected entities, or reports concerning ransomware victim claims.
Vulnerability	Articles that details the vulnerability's impact, and its exploitation status (e.g., availability of a Proof-of-Concept (POC) or active exploitation in the wild).

Sub-category

Sub-category	Description
Threat Actor Profile	A detailed report on a specific Threat Actor (who they are), how they attack, what tools they use, and all the past campaigns we think they are responsible for.
Tool Profile	A report that focuses on a single hacking tool (or a normal tool that hackers abuse). It explains how it works, which hacker groups use it, and how you can detect and block it.
Malware Analysis	Deep dive analysis of malware either static, dynamic or reverse engineer the malware sample(s) to understand how it works, capabilities, potential attributions and other intelligence requirements.
Intrusion Analysis (Incident Analysis)	A close-up look at one single successful attack on only against specific target (usually one). It maps out the entire story, from how the hacker first got in until they achieved their final goal (like stealing data).
Campaign Analysis	A report that looks at several related attacks against multiple targets. It helps connect the dots to see a bigger picture of what a hacker group is trying to achieve strategically.
Leaks Forum	Reports focused on illegal underground forums where hackers post and try to sell or share data they claim to have stolen from a company.
Leaks Infostealer	An analysis focused on finding stolen data logs (like passwords) from “Infostealer” malware that are linked to a specific company or organization.
Zero-day	Unpatched Exploits: High-priority indicators for vulnerabilities that have no official patch or were exploited before public awareness.
Branded Vulnerability	High-Profile Bugs: Vulnerabilities with marketing names/logos (e.g., Heartbleed, PwnKit) that often see rapid, mass exploitation.
Critical Vulnerability	High-Severity Flaws: Standard vulnerabilities that carry a high CVSS/EPSS score but may not have a brand name.
Report	Other related cybersecurity or intelligence reports that is relevant.

Threat Actor Category

TA Category	Description	Example
APT	Highly sophisticated, long-term clandestine campaigns. These actors have significant resources and focus on stealth to maintain persistent access to a network for espionage or data theft. Can be State sponsored, can be cybercrime.	Dark Basin, Lazarus, FIN7
State Sponsored	Highly-skilled hackers funded and directed by a government of certain nation.	APT28 (Fancy Bear), APT34 (OilRig), Lazarus Group
Cybercrime	Individuals or organized groups (Cybercriminals) whose primary motivation is financial gain.	FIN7
Ransomware	An organized collective of cybercriminals that develops, distributes, and operates sophisticated ransomware strains, often employing the Ransomware-as-a-Service (RaaS) model and double extortion tactics.	LockBit, BlackCat (ALPHV), Clop
Hacktivist	Hackers motivated by a political, social, or ideological cause, using hacking as a form of protest.	Anonymous, LulzSec, OpIsrael

Target

Target	Details
Broad-based	CommodityOpportunistic	Everyone is a target, no exclusionEveryone is a target, some exclusion such as specific country, locale, etc.Specific Language - still broad (example targeting German/Mandarin Speaking)Specific country - political events, etc.Specific group of people (red-teamers, pentesters, gamers, etc.)
Targeted	Specific Target - specially crafted based on opportunity or targets Information Attack Space	Specific Individual/Company/Organization

Target vs Victim

Characteristics	Target	Victim
Inclusivity	All target is a victim	Not all victim is a target
Details	Must contain specific key indicators (multiple) that directs to the target.	Most of the articles with specified country etc. is victim limited to their telemetry (who is their customer)
Example	Based on keyword in the spear-phishing email which only relevant to the target and vulnerability exploited is opportunity TA used against the victim.	Based on the telemetry of the vendor, it is found that country X has been affected in this campaign.
Defined as	specifically targeting	at least

Relevancy

Relevancy	Links	Example
🔴Relevant	relevant	APT targeting Malaysian entity.
🟡Somewhat Relevant	somewhat-relevant	APT target Asian country.
🔵Potentially Relevant	potentially-relevant	Infostealers impact globally.
⚫Not Relevant	not-relevant	Good to know only.

_{p.s. Not relevant does not mean to be ignored, it can be use to improve our security detection or prevention from the lesson learn of the incident. It is just lower priority compared to other three as the event may specifically targeting organizations that is not related to Malaysia, or targeting specific language speakers (e.g. russian language) and etc.}

Rectifyq’s Workflow

Workflow	Description
Check Date	Ensure MISP Event Date is same as the date the article was posted.
Review Severity	Select MISP Event severity as per above severity definition.
Check Producer	Ensure correct Producer is tagged in MISP Event galaxy.
Check Actor	Add Threat Actor tag in MISP Event Galaxy, if there is none in Galaxy, add as attribute and tag as create missing galaxy.
Check Target	Add Target Information and Sector tag in MISP Event Galaxy.
Check Tool	Add related tools tag in MISP Event Galaxy.
Check Malware	Add Malpedia tag in MISP Event Galaxy
Check TTP	Ensure MITRE ATT&CK in MISP Event Galaxy is accurate, priority goes to Malaysia related event (may need to self curate if not provided by the Producer)
Add IOC Context	Add comments with relevant context in each attributes. (e.g. 84c82835a5d21bbcf75a61706d8ab549 - WannaCry Ransomware)
Check Key Indicator	Add related attributes/objects with details that may be used for attribution such as: - username:password used by TA in the infection chain - decryption key used - mutexes - password for archives - sender email addressess - language used - etc.
Need sample sponsor	Require Malware sample sponsor, either upload to Malware Bazaar (preferred) or upload directly to MISP(for sample with sensitive data)
To Report to	To report to relevant parties such as the owner, hosting provider, MyCERT, registrar or etc.

Topics

Topics	Description
Geopolitical	Geopolitical Related
ICS-OT	Industrial Control System (ICS) and Operational Technology (OT)
Mobile Attack	Mobile Attack
Supply Chain	Supply Chain