Browse Definitions:
Definition

Stegano

Contributor(s): Ivy Wigmore

Stegano is a malware toolkit that allows users to hide malicious code in images. The kit’s name comes from steganography, which is a method of encoding secret data within a file for subsequent decoding.

In late 2016, Stegano was used in a malvertisement campaign that placed malicious code in PNG images in banner ads on prominent websites. The perpetrators hid their scripts within the code for transparency parameters in some pixels within images. The appearance of the images were altered slightly but not to the extent that the difference would be noted by a casual viewer. The attackers then used the image in an ad and bought display spots on popular websites. ESET, the IT security company that reported the exploit,  has not disclosed the names of the websites affected, since the sites themselves were not at fault.

Depending on undisclosed user profile variables, site visitors were either served a clean ad or a malicious one that enabled remote installation of malware on the users’ computers. The attack targeted users of Internet Explorer and exploited vulnerabilities in some versions of Flash Player. Malware installation was automatic and did not require that the user click the ad. Researchers reported that there were two ads in the campaign, one purportedly for privacy software called “Browser Defence” and one for an image-capturing product called “Broxu.”

According to ESET the malicious ads had installed various malware to the computers of over a million users within  the preceding two months.  Robert Lipovsky, a senior malware researcher with the company, said that figure was a conservative estimate.

This was last updated in December 2016

Continue Reading About Stegano

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

SearchSecurity

  • evil maid attack

    An evil maid attack is a security exploit that targets a computing device that has been shut down and left unattended.  An evil ...

  • Common Body of Knowledge (CBK)

    In security, Common Body of Knowledge (CBK) is a comprehensive framework of all the relevant subjects a security professional ...

  • rootkit

    A rootkit is a program or, more often, a collection of software tools that gives a threat actor remote access to and control over...

SearchHealthIT

  • value-based healthcare

    Value-based healthcare, also known as value-based care, is a payment model that rewards healthcare providers for providing ...

  • health informatics

    Health informatics is the practice of acquiring, studying and managing health data and applying medical concepts in conjunction ...

  • clinical trial

    A clinical trial, also known as a clinical research study, is a protocol to evaluate the effects and efficacy of experimental ...

SearchDisasterRecovery

  • crisis communication

    Crisis communication is a method of corresponding with people and organizations during a disruptive event to provide them with ...

  • Zerto

    Zerto is a storage software vendor that specializes in enterprise-class business continuity and disaster recovery in virtual and ...

  • crisis management plan (CMP)

    A crisis management plan (CMP) is a document that outlines the processes an organization will use to respond to a critical ...

SearchStorage

  • cache memory

    Cache memory, also called CPU memory, is high-speed static random access memory (SRAM) that a computer microprocessor can access ...

  • RAID 10 (RAID 1+0)

    RAID 10, also known as RAID 1+0, is a RAID configuration that combines disk mirroring and disk striping to protect data.

  • Red Hat OpenStack Platform

    Red Hat OpenStack Platform is a commercially supported distribution of open source OpenStack software designed to build and ...

SearchSolidStateStorage

  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.

Close