DFIR · EVIDENCE

Digital Forensics & Investigations

Evidence-grade investigations of compromised hosts, phishing, insider cases and data leaks — with a clear, defensible timeline.

5
Deliverables
9
Tools
3
Attacks covered

What I deliver

  • Memory and disk acquisition with hashing and chain of custody
  • Windows and Linux artefact analysis
  • Email, phishing and header investigations
  • Timeline reconstruction across hosts and logs
  • Reports written for management, legal and technical teams
⟩ how I approach it

Step by step

  1. 01

    Isolate, don't wipe — preserve evidence

  2. 02

    Capture memory, then disk, with hashes

  3. 03

    Analyse artefacts and logs

  4. 04

    Build the timeline of what happened

  5. 05

    Report for management, legal and IT

⟩ who it's for
Companies after a breach or suspicious activityHR / legal investigationsPhishing and account-takeover victimsInsurers needing an independent view
⟩ real-world projects

Selected engagements

From my work at BERRY9 IT Services, as a freelancer, at CRIS InfoTech and Hacktr Technologies, and my own tools and research.

01

Phishing investigations — campaigns, malicious URLs and email headers traced to their source

02

Root cause analysis for client incidents with long-term preventive actions

⟩ common vulnerabilities & how I find them

Top bugs I hunt — and the steps

The recurring weaknesses I see in this domain, with the repeatable workflow I run from discovery to fix.

  1. STEP 1Trace the email: headers, SPF/DKIM/DMARC, links
  2. STEP 2Find who clicked and entered credentials (proxy, IdP logs)
  3. STEP 3Check for follow-on logins and mailbox rules
  4. STEP 4Contain: reset, revoke sessions, block sender
⟩ arsenal

Tools & frameworks

Volatility
Memory Forensics
Autopsy
Disk Forensics
KAPE
Triage Collection
FTK Imager
Disk Imaging
Velociraptor
DFIR Platform
Sysinternals
Windows Diagnostics
Wireshark
Packet Analysis
Sysmon
Windows Telemetry
CyberChef
Decode & Transform
⟩ engage

Need digital forensics & investigations expertise?

Get in touch
⟩ related

More in Specialized Expertise

All skills
⟩

Let's Work Together

connect

VAPT engagements, SOC consulting, AI/LLM security assessments, incident response or training at Hacktr Technologies — tell me what you're protecting and I'll reply within one working day.

  1. 1. Scoping call

    30 minutes on what you need — apps, APIs, SOC, AI or training.

  2. 2. Proposal

    Clear scope, rules of engagement, timeline and price.

  3. 3. Test, report, retest

    Findings with PoC and fixes, then a free retest.

Security projects

CRIS InfoTech · Co-Founder & CTO

VAPT, SOC, AI/LLM security, forensics, incident response

contact@crisinfotech.com

Training & courses

Hacktr Technologies · Lead Trainer

Batches, corporate training, career & placement help

info@hacktrtechnologies.com

Talk to me directly

Sudhakar Reddy · LinkedIn

Speaking, collaborations, mentoring — message me on LinkedIn

Message on LinkedIn
LinkedIn GitHub Instagram Hyderabad · worldwide