Top issues
Problem
Software components contain executable code that performs actions implemented during its development. These actions are called behaviors. In the analysis report, behaviors are presented as human-readable descriptions that best match the underlying code intent. While most behaviors are benign, some are commonly abused by malicious software with the intent to cause harm. When a software package shares behavior traits with malicious software, it may become flagged by security solutions. Any detection from security solutions can cause friction for the end-users during software deployment. While the behavior is likely intended by the developer, there is a small chance this detection is true positive, and an early indication of a software supply chain attack.Prevalence in NuGet community
0 packages
found in
Top 100
0 packages
found in
Top 1k
4 packages
found in
Top 10k
1095 packages
in community
Next steps
Investigate reported detections.
If the software intent does not relate to the reported behavior, investigate your build and release environment for software supply chain compromise.
You should delay the software release until the investigation is completed, or until the issue is risk accepted.
Consider rewriting the flagged code without using the marked behaviors.
Problem
Operating systems provide multiple integration points for applications to insert themselves in the system startup sequence. Startup sequence is executed in its entirety each time the computer system powers on. For that reason, attackers typically try to register their malicious code in the system startup sequence. When malicious code is registered to start with the operating system, it achieves persistence, as it becomes permanently installed. While the presence of code that modifies the system startup sequence does not necessarily imply malicious intent, all of its uses in a software package should be documented and approved. Only applications that require constant background operation should consider installing themselves as a part of the startup sequence. One exemption to this recommendation would include running the application after the first system reboot to complete the software installation.Prevalence in NuGet community
0 packages
found in
Top 100
0 packages
found in
Top 1k
5 packages
found in
Top 10k
337 packages
in community
Next steps
Investigate reported detections as indicators of software tampering.
Consult Mitre ATT&CK documentation: T1547.001 - Registry Run Keys/Startup Folder.
Consider rewriting the flagged code without using the marked behaviors.
Detected presence of software components that are rarely included by other public software packages.
hunting
Problem
Software developers use programming and design knowledge to build reusable software components. Software components are the basic building blocks for modern applications. Software consumed by an enterprise consists of hundreds, and sometimes even thousands of open source components. Software developers publish components they have authored to public repositories. While a new software project is a welcome addition to the open source community. it is not always prudent to indiscriminately use the latest components when building a commercial application. Irrespective of the software quality, the danger of using components that are rarely used to build applications lies in the fact that the software component may contain novel, currently undetected malicious code. Therefore, it is prudent to review software component behaviors and even try out software component in a sandbox, an environment meant for testing untrusted code.Prevalence in NuGet community
No prevalence information at this timeNext steps
Check the software component behaviors for anomalies.
Consider exploratory software component testing within a sandbox environment.
Consider replacing the software component with a more widely used alternative.
Avoid using this software package until it is vetted as safe.
Problem
Software developers use programming and design knowledge to build reusable software components. Software components are the basic building blocks for modern applications. Software consumed by an enterprise consists of hundreds, and sometimes even thousands of open source components. Open source communities depend on the work of thousands of software developers that volunteer their time to maintain software components. Software developers build up the reputation of their open source projects by developing in public. Modern source code repositories have many social features that allow software developers to handle bug reports, have discussions with their users, and convey reaching significant project milestones. It is uncommon to find open source projects that omit linking their component to a publicly accessible source code repository.Prevalence in NuGet community
No prevalence information at this timeNext steps
Check the software component behaviors for anomalies.
Consider exploratory software component testing within a sandbox environment.
Consider replacing the software component with a more widely used alternative.
Avoid using this software package until it is vetted as safe.
Detected digital signatures that rely on a weak digest algorithm for integrity validation.
signatures
Problem
Digital signatures are applied to applications, packages and documents as a cryptographically secured authenticity record. Signatures verify the origin and the integrity of the object they apply to. The integrity validation relies on the cryptographic strength of the encryption and the hash verification algorithm. If either of the two is considered weak by current standards, there is a chance the signed object could be maliciously modified, without triggering the integrity failure check.Prevalence in NuGet community
0 packages
found in
Top 100
38 packages
found in
Top 1k
315 packages
found in
Top 10k
733240 packages
in community
Next steps
Create signatures with strong ECC key-length of at least 224 bits, or RSA key-length of at least 2048 bits, and use SHA256 as the hashing algorithm. While encryption key-length upgrade does require you to obtain a new certificate, the hashing algorithm can freely be selected during signing.
With Microsoft SignTool, you can specify the hashing algorithm using the /fd SHA256 parameter.
Top behaviors
Tampers with autorun registry keys.
autostart
Prevalence in NuGet community
Behavior commonly used by malicious software (Important)
Behavior uncommon for this community (Uncommon)
0 packages
found in
Top 100
0 packages
found in
Top 1k
8 packages
found in
Top 10k
1061 packages
in community
Might contain potentially obfuscated code or data.
anomaly
Prevalence in NuGet community
Behavior uncommon for this community (Uncommon)
0 packages
found in
Top 100
2 packages
found in
Top 1k
32 packages
found in
Top 10k
6836 packages
in community
Encrypts data using Advanced Encryption Standard (AES).
packer
Prevalence in NuGet community
Behavior uncommon for this community (Uncommon)
0 packages
found in
Top 100
0 packages
found in
Top 1k
9 packages
found in
Top 10k
4721 packages
in community
Encodes data using the Base64 algorithm.
packer
Prevalence in NuGet community
Behavior often found in this community (Common)
0 packages
found in
Top 100
21 packages
found in
Top 1k
144 packages
found in
Top 10k
69157 packages
in community
Decrypts data using Advanced Encryption Standard (AES).
packer
Prevalence in NuGet community
Behavior uncommon for this community (Uncommon)
0 packages
found in
Top 100
0 packages
found in
Top 1k
12 packages
found in
Top 10k
5271 packages
in community
Top vulnerabilities
No vulnerabilities found.