Contact us: info@tenendo.com
Incident Investigation
Reconstruct the attack
from what little
telemetry survives.
When a compromise surfaces, the investigation is rarely handed a clean dataset. We unwind the attacker’s path from scattered, incomplete telemetry — and help you close the gaps before the next one.
Why investigations stall
It’s rarely the analysts. It’s the blind spots.
Investigations seldom fail for lack of skill. They fail on gaps that were already in place long before the first alert fired.
/ TECH
Not enough telemetry
No agent on the host that mattered. Logs rotated out days ago. Missing data isn’t the absence of an attack — it’s a blind spot you can’t backfill once the clock is running.
/ TECH
Infrastructure complexity
Hybrid estates, undocumented segmentation, contractors with their own access. The less your environment is mapped, the longer even basic scoping takes — and the more gets missed.
/ ORG
Coordination under fire
Day one lost to provisioning access, mobilizing teams, and finding who’s authorized to isolate a host at 2 a.m. The organizational delay is the one nobody plans for.
How we investigate
A method built around the telemetry you actually have.
In a real engagement the dataset is never clean. The method bends around what exists — and makes the most of every source available.
Phase 01
Available telemetry
We take stock of what’s truly there — endpoint detection and centralized logs — and map the gaps before relying on either.
- XDR / EDR platforms
- SIEM & log stacks
- Logon & privileged-access records
Phase 02
Correlation
Anchored on timestamps across separate platforms, starting from high-confidence indicators and unwinding the lateral-movement path.
- Known malware & IoCs
- Pivot-path reconstruction
- Network & sudo log fusion
Phase 03
Forensics & malware
Where host images allow, deep forensics; where they don’t, malware samples often yield the clearest indicators of all.
- Sample analysis
- Capability & attribution
- New IoCs back into correlation
Prepare before the breach
Three practices, one progression of readiness.
From aligning your people, to proving your telemetry can see, to rehearsing the whole investigation on a real incident.
01
Tabletop Exercise
people & process
A discussion-based simulation that tests roles, escalation, and decisions — surfacing organizational gaps while they still cost a conversation, not hours.
Maturity
Theory
02
Threat Hunting
technical visibility
A discussion-based simulation that tests roles, escalation, and decisions — surfacing organizational gaps while they still cost a conversation, not hours.
Maturity
Visibility
03
Red Teaming
live investigation drill
A controlled adversary emulation that creates a real incident — so your team rehearses the full investigation cycle on live material, then checks findings against the actual attack plan.
Maturity
Reality
Get ahead of it
Find your blind spots before an attacker does.
A readiness review maps your telemetry, your response process, and the gaps between them — and shows you exactly where to start.