Malware analysis at a retail chain

Retail malware investigation — Retail chain · anonymized case.

Background

Alpha Retail Pvt. Ltd. (anonymized) is a large retail chain with physical stores and an online channel. Its servers handle customer information, payment details, and inventory records.

Problem

A routine security audit found malware on production servers.

What I examined

Initial detection via Symantec Endpoint Protection alerts
Static analysis in IDA Pro
Dynamic analysis in Cuckoo Sandbox
Network traffic in Wireshark for command-and-control behavior

What the evidence showed

Based on the sample behavior and surrounding evidence, I concluded the malware was likely introduced through a phishing message that led to compromised employee credentials. That is a probable entry route supported by the investigation — not a courtroom attribution.

What I implemented

Removed the malware (Malwarebytes on affected hosts)
Applied patches for the vulnerabilities that allowed persistence
Ran phishing-awareness sessions
Helped introduce two-factor authentication for relevant access

Outcome

The malware was removed without significant data loss or downtime. Preventive controls were stronger afterward; that does not mean the environment became invulnerable.