operator
ChainsTTPsBlogLogin
menu
Prelude TTP browser

Decode Schism from PNG

Tactic: Defense-evasion
Professional
This is a professional level chain. This TTP requires an professional license to use.info
/static/assets/linux-logo.svg
This TTP decodes the PNG to obtain the script for Schism. Each character for the code is hidden in each pixel's RGB value. The ascii value of the character is obtained by combining the last two 2 bits for Red, and the last 3 bits for green and blue (in order). The TTP will output a Python file containing Schism.
locked
View Command

To view this TTPs command, you must be logged in with a professional or enterprise license.

Login

Authors

seiji sakurai

Tactic

Defense-evasion

Test this TTP

Download Operator (1.7.1)
Test this TTP using one of our Operator chains
Operation Ghost

2022-03-15

/static/assets/linux-logo.svg
Emulating APT 29 malware loader via steganography.
About PreludePrelude hardens an organization's defenses by continuously “asking” it questions through the form of safe cyberattacks. These attacks respond immediately to the latest vulnerabilities and cyber events, turning complex technical descriptions into deployable “questions”.Our mission is to increase the reach, frequency and usage of advanced security for all organizations.
twitterFollow @preludeorg on Twitter for new chains and more.
discordJoin the Prelude Discord to discuss chains and more.
githubKeep up to date with code changes and community activity on Github
operator
preludesecurity.comCareersTactics & TechniquesAttack themes
Privacy Policysupport@preludesecurity.com© 2023 Prelude Research, Inc.All rights reserved. Prelude, its logo and other trademarks are trademarks of Prelude Research, Inc. and may not be used without permission.