Upload Tool

T1608.002

Sub-technique of T1608 Stage Capabilities.View on attack.mitre.org

About this technique

Adversaries may upload tools to third-party or adversary controlled infrastructure to make it accessible during targeting. Tools can be open or closed source, free or commercial. Tools can be used for malicious purposes by an adversary, but (unlike malware) were not intended to be used for those purposes (ex: PsExec). Adversaries may upload tools to support their operations, such as making a tool available to a victim network to enable Ingress Tool Transfer by placing it on an Internet accessible web server.

Tools may be placed on infrastructure that was previously purchased/rented by the adversary (Acquire Infrastructure) or was otherwise compromised by them (Compromise Infrastructure). Tools can also be staged on web services, such as an adversary controlled GitHub repo, or on Platform-as-a-Service offerings that enable users to easily provision applications.

Adversaries can avoid the need to upload a tool by having compromised victim machines download the tool directly from a third-party hosting location (ex: a non-adversary controlled GitHub repo), including the original hosting site of the tool.

Detection rules1

Rules on DetectionCode tagged with T1608.002.

Sigma0

No Sigma rules are mapped to this technique yet.

Splunk1

RuleTypeRiskData source
Windows Unusual File Creation in Confluence DirectoryAnomalyNULLSysmon EventID 11

Groups2

Software0

None recorded.

Campaigns3

Procedure examples5

Groups2

Used byProcedure example
GroupMedusa Group

Medusa Group has utilized a file hosting service called filemail[.]com to host a zip file that contained a RMM service such as ConnectWise.

GroupThreat Group-3390

Threat Group-3390 has staged tools, including gsecdump and WCE, on previously compromised websites.

Campaigns3

Used byProcedure example
Campaign2025 Poland Wiper Attacks

During the 2025 Poland Wiper Attacks, the adversaries had staged tools and files for use on Dropbox and Pastebin.

CampaignC0010

For C0010, UNC3890 actors staged tools on their infrastructure to download directly onto a compromised system.

CampaignOperation Dream Job

For Operation Dream Job, Lazarus Group used multiple servers to host malicious tools.

References4

  1. Dell TG-3390 Open source
    Dell SecureWorks Counter Threat Unit Threat Intelligence. (2015, August 5). Threat Group-3390 Targets Organizations for Cyberespionage. Retrieved August 18, 2018.
  2. Dragos Heroku Watering Hole Open source
    Kent Backman. (2021, May 18). When Intrusions Don’t Align: A New Water Watering Hole and Oldsmar. Retrieved August 18, 2022.
  3. Intezer App Service Phishing Open source
    Paul Litvak. (2020, October 8). Kud I Enter Your Server? New Vulnerabilities in Microsoft Azure. Retrieved August 18, 2022.
  4. Malwarebytes Heroku Skimmers Open source
    Jérôme Segura. (2019, December 4). There's an app for that: web skimmers found on PaaS Heroku. Retrieved August 18, 2022.

Data from MITRE ATT&CK® (Enterprise). ATT&CK® is a registered trademark of The MITRE Corporation.