Last updated by: Devika1010, Last updated on: 11/08/2024
Virus Outbreak Incident Response Playbook
Virus-Outbreak Incident Response Playbook for Blue Team
Effective Date: 3 August 2024. Last Edited: 03 August 2024. Authors: Devika Sivakumar Document Reference: VOIRP-2. Expiry Date: 03 March 2025. Version: 2.0.
1. Introduction
Virus outbreaks pose significant threats to data integrity, operational continuity, and organizational reputation. Timely detection, containment, and mitigation of virus incidents are crucial to minimizing damage and ensuring business resilience. This playbook provides a structured approach for managing virus outbreaks, detailing roles, responsibilities, and processes for an effective response.
1.1 Overview
There is a methodical structure available in the Virus Outbreak Incident Response Playbook for identifying, stopping, eliminating, and recovering from virus attacks. It seeks to expedite reaction efforts and lessen the impact of viral outbreaks on organisational assets and stakeholders by developing defined standards and communication channels.
1.2 Purpose
This playbook's goals are to:
- For viral outbreaks, create a standard operating protocol to guarantee uniformity and efficiency in incident response.
- Encourage the prompt discovery and containment of occurrences to limit damage and stop future spread.
- Minimise financial losses and the effect of viral outbreaks on organisational operations.
- During incident response efforts, encourage collaboration, coordination, and communication amongst response teams, stakeholders, and other pertinent parties.
1.3 Attack Definition
Malicious software that aims to damage, interfere with, or get unauthorised access to computer systems, networks, and data is known as a virus. They cover a wide range of dangers, such as spyware, ransomware, trojans, and worms. Numerous routes, including malicious websites, email attachments, infected files, and software flaws, can allow viruses to infiltrate a system.
1.4 Scope
This playbook describes events pertaining to virus outbreaks that affect the computers, networks, and endpoints of Redback Operations. It deals with internal and external viral problems that impact data assets, stakeholders, and organisational procedures. Regardless of the type of virus or how it spreads, a coordinated reaction is necessary.
2. Attack Types
There are several ways that virus outbreaks might appear, and each one poses different difficulties for incident response teams. The subsequent assault types are frequently linked to viral outbreaks:
2.1 File Infector Viruses
When executable files are opened, file infector viruses cling to them, multiply, and spread to other files, causing extensive harm.
Signs of File Infector Virus Activity:
-
Unknown corruption or alteration of executable files.
-
Unexpected variations in checksums or file sizes.
-
Reports of malicious file alarms from antivirus software.
-
Unexpected rise in system resource consumption brought on by viral propagation.
-
Suspicious network traffic coming from machines that have been compromised.
Case Study: CIH Virus (1998)
- Overview: The destructive file infector virus known as the CIH virus, or Chernobyl, was specifically designed to attack executable files on Windows 95 and 98.
- Signs of Activity: Corruption of executable files, system crashes, and data loss.
- Impact: Infected thousands of computers worldwide, causing widespread data loss and hardware damage.
- Response: Antivirus updates and system restores were implemented to recover affected systems.
2.2 Macro Viruses
Macro viruses propagate by infecting spreadsheets and documents that include macros. The macros are subsequently performed when the file is accessed, potentially leading to data loss or system interruption.
Signs of Macro Viruses Activity:
-
Unusual actions or error messages while attempting to open spreadsheets or documents.
-
Emails with links to malicious documents or attachments that seem suspicious.
-
Reports of unforeseen modifications to the layout or substance of documents.
-
Infected papers are found and quarantined by antivirus software.
-
Increased network traffic because of the transmission or sharing of infected documents.
Case Study: Melissa Virus (1999)
- Overview: The Melissa virus spread through infected Word documents sent via email.
- Signs of Activity: Mass emailing of infected documents, unauthorized access to email contacts.
- Impact: Disrupted email services and caused significant financial damage estimated at $80 million.
- Response: Vendors of antivirus software promptly produced updates to identify and eradicate the malware. Security protocols for emails were strengthened to prevent such assaults.
2.3 Boot Sector Viruses
The master boot record (MBR) or boot sector of storage devices can get infected with boot sector viruses, which impair the system's ability to start correctly and may result in data loss or system failure.
Signs of Boot Sector Viruses Activity:
-
Anomalous errors during the boot process or the system's inability to boot up. Reports of system files being damaged or missing.
-
Notifications from antivirus software that boot sector viruses are present.
-
Adjustments to disc partitions or partition tables that are not explained.
-
Suspicious behaviour on the network coming from devices that are infected and trying to propagate the infection.
Case Study: Michelangelo Virus (1992)
- Overview: On March 6th, a boot sector malware known as the Michelangelo virus became active and began damaging hard drives.
- Signs of Activity: System crashes and inability to boot.
- Impact: Infected thousands of computers, causing significant data loss.
- Response: Before March 6th, users were encouraged to do antivirus scans to identify and eliminate the infection. Protection measures for the boot area were put in place.
2.4 Polymorphic Viruses
With every infection, polymorphic viruses alter their look and coding structure, making antivirus software's job of detecting and eliminating them more difficult.
Signs of Polymorphic Viruses Activity:
-
Files with often changing signatures are identified by antivirus software and placed in quarantine.
-
Random crashes or problems on compromised devices that are not explained.
-
Reports of unusual or unpredictable behaviour from files or apps.
-
A rise in network traffic as the virus looks to infect other machines.
-
System logs demonstrating many attempts to run malicious code with different characteristics.
Case Study: Storm Worm (2007)
- Overview: A polymorphic malware called Storm Worm propagated via hacked websites and email attachments.
- Signs of Activity: Rapidly changing code signatures, system slowdowns, and crashes.
- Impact: Infected millions of computers worldwide, creating a large botnet.
- Response: To detect and neutralise the virus, security researchers used sophisticated detection techniques. Campaigns for public awareness were started to inform people about secure email usage.
2.5 Resident Viruses
Because resident viruses lodge themselves in system memory, they can continue to function even after the system is restarted.
Signs of Resident Virus Activity:
-
Unexpected system lag or deterioration in performance.
-
Antivirus software that looks for infections in RAM.
-
Persistence in task management or process monitor of processes linked to viruses.
Case Study: CodeRed Worm (2001)
- Overview: CodeRed was a resident virus that took use of an IIS buffer overflow vulnerability to attack Windows servers.
- Signs of Activity: Website defacements, system slowdowns, and memory consumption.
- Impact: Infected over 359,000 hosts, causing estimated damages of $2.6 billion.
- Response: Microsoft fixed the problem via updates. It was recommended that network administrators deploy fixes and keep an eye out for unusual activities.