WannaCry : Some Quick Precautions To Take

Author - Tushar Vartak, Director Information Security, Rak Bank


Since 12th Apr 2017, a Ransomware exploiting MS17-010 has been wreaking havoc worldwide.


Precautions to be taken:


1 - Patch Management

  • Ensure all Workstations and Servers have the latest Microsoft patches, especially the ones related to MS17-010.


2 - Antivirus

  • Ensure AV signatures are updated on all assets. Identify critical assets and target them first. Block IOCs on AV solution.
  • Get the details with regards to the name of the malware and verify if this malware has been detected in the logs for last 1 week.


3 - IPS

  • Ensure IPS signatures are updated. Verify if the signature that can detect this vulnerability / exploit attempt is enabled and is in blocking mode.
  • Get the details with regards to the name of the Signature and verify if this Signature has been detected in the logs for last 1 week.


4 - eMail Gateway

  • Ensure eMail Gateway solutions has all relevant updates for detecting possible mails that may bring the Trojan in the environment.


5 - Proxy

  • Ensure Proxy solution has updated database. Block IOCs for IP Address and Domain names on the Proxy.
  • Verify last one week logs for the IOCs on Proxy and take action on sources of infection.


6 - Firewall

  • Block the IP addresses on Perimeter Firewall.
  • Verify logs for last one week.


7 - Anti - APT Solutions

  • Ensure signatures are up to date.
  • Check for possible internal sources of infection and take actions.


8 - SIEM

  • Check logs to verify if any of the IOCs have been detected in 1 week logs.

Note:
a - If required, raise case with OEM for getting details
b - All changes to follow proper approvals and change management process

Views: 161

Join the Discussion ...

You need to be a member of CISO Platform to join the discussion!

Join CISO Platform

FireCompass

Forum

CISO as an enabler

Started by Maheshkumar Vagadiya Jul 30. 0 Replies

Share the instances where you were able to convince the Executive management /board that CISO function is enabler rather then a hindrance.Thanks youMaheshContinue

Has Anyone Evaluated Digital Signature (like Docusign)?

Started by CISO Platform. Last reply by SACHIN BP SHETTY Apr 24. 1 Reply

(question posted on behalf of a CISO member)Has anyone evaluated digital signature (like Docusign), any specific risk/ security areas to be looked into while finalising a vendor? Any and all inputs will be very much appreciated.Continue

What are your strategies for using Zoom in your organization after recent vulnerabilities in news about Zoom platform?

Started by CISO Platform. Last reply by ANAND SHRIMALI May 20. 4 Replies

(question posted on behalf of a CISO member)What are your strategies for using Zoom in your organization after recent vulnerabilities in news about Zoom platform?Related Question: …Continue

[Please Suggest] Corona Virus: Security advisory for work from home

Started by CISO Platform. Last reply by Bhushan Deo Mar 20. 12 Replies

(question posted on behalf of a CISO member)Due to CORONA virus most of the organizations are allowing their employees to work form home.Has any one issued security advisory for work from home ?Continue

Tags: #COVID19

Follow us

Contact Us

Email: contact@cisoplatform.com

Mobile: +91 99002 62585

InfoSec Media Private Limited,First Floor,# 48,Dr DV Gundappa Road, Basavanagudi,Bangalore,Karnataka - 560004

© 2020   Created by CISO Platform.   Powered by

Badges  |  Report an Issue  |  Privacy Policy  |  Terms of Service