Browse Definitions :
Definition

Stegano

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

SearchCompliance
  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

SearchSecurity
  • Extensible Authentication Protocol (EAP)

    The Extensible Authentication Protocol (EAP) is a protocol for wireless networks that expands the authentication methods used by ...

  • session key

    A session key is an encryption and decryption key that is randomly generated to ensure the security of a communications session ...

  • data breach

    A data breach is a cyber attack in which sensitive, confidential or otherwise protected data has been accessed and/or disclosed ...

SearchHealthIT
SearchDisasterRecovery
  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage
  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close