Flash Player Emulator 2026
The AI review rates the findings as likely false positive, but the risk score (65/100) still counts them.
Analysis record
- Analysed
- 8 months ago
- Version
- v1.9.3
- Artifact
- SHA256 625…CAD
- Source
- Findings (non-IoC)
Evidence ledger
Ranked by severity · findings with a source location link to the code viewer
YARA Rule Matches
11 rules| Severity | Rule | Hits | Files | Metadata |
|---|---|---|---|---|
| HIGH | UntrustedContentShouldNotBeIncluded Including content in your site from an untrusted source can expose your users to attackers and even compromise your own site. For that reason, this rule raises an issue for each non-relative URL. For more information checkout the OWASP A1:2017 (https://owasp.org/www-project-top-ten/2017/A1_2017-Injection.html) advisory. | 1 | ruffle/ruffle.js | FP 20% |
| HIGH | postinstall network communication Network communication detected | 16 | ruffle/3011bcc495d95ccdb484.wasmbg.jspage-bridge.js +13 more | Risky Plugins Authors FP 30% |
| HIGH | postinstall system command System command execution detected | 6 | ruffle/core.ruffle.42e9812376a772a5def7.jsruffle/81d63abfb638f19f765a.wasmruffle/ruffle.js +3 more | Risky Plugins Authors FP 10% |
| HIGH | postinstall file manipulation File system manipulation detected | 9 | ruffle/3011bcc495d95ccdb484.wasmplayer.jscs.js +6 more | Risky Plugins Authors FP 20% |
| HIGH | postinstall persistence mechanism Persistence mechanism detected | 2 | ruffle/3011bcc495d95ccdb484.wasmruffle/81d63abfb638f19f765a.wasm | Risky Plugins Authors FP 20% |
| HIGH | postinstall registry modification Windows registry modification detected | 4 | ruffle/core.ruffle.42e9812376a772a5def7.jsruffle/3011bcc495d95ccdb484.wasmruffle/core.ruffle.e69ba15208200a5d72ea.js +1 more | Risky Plugins Authors FP 30% |
| HIGH | postinstall obfuscation Code obfuscation techniques detected | 9 | ruffle/ruffle.jsruffle/3011bcc495d95ccdb484.wasmplayer.js +6 more | Risky Plugins Authors FP 20% |
| HIGH | postinstall file download File download activity detected | 9 | ruffle/3011bcc495d95ccdb484.wasmplayer.jscs.js +6 more | Risky Plugins Authors FP 30% |
| HIGH | LocalStorageShouldNotBeUsed Session storage and local storage are HTML 5 features which allow developers to easily store megabytes of data client-side, as opposed to the 4Kb cookies can accommodate. While useful to speed applications up on the client side, it can be dangerous to store sensitive information this way because the data is not encrypted by default and any script on the page may access it. This rule raises an issue when the localStorage and sessionStorage API's are used. For more information checkout the OWSAP A3:2017 (https://owasp.org/www-project-top-ten/2017/A3_2017-Sensitive_Data_Exposure.html) advisory. | 1 | ruffle/ruffle.js | FP 5% |
| HIGH | postinstall crypto operations Cryptographic operations detected | 8 | ruffle/3011bcc495d95ccdb484.wasmmv3-upgrade.jsruffle/81d63abfb638f19f765a.wasm +5 more | Risky Plugins Authors FP 30% |
| HIGH | DebuggerStatementsShouldNotBeUsed The debugger statement can be placed anywhere in procedures to suspend execution. Using the debugger statement is similar to setting a breakpoint in the code. By definition such statement must absolutely be removed from the source code to prevent any unexpected behavior or added vulnerability to attacks in production. For more information checkout the CWE-489 (https://cwe.mitre.org/data/definitions/489.html) advisory. | 2 | ruffle/3011bcc495d95ccdb484.wasmruffle/81d63abfb638f19f765a.wasm | FP 10% |
Network Indicators
Concrete URLs, domains, IPs, emails, and hashes extracted from the analyzed artifact.
Loading network indicators
IoC detail rows are loaded outside the initial page render.
Publisher Evidence
Limited evidencePublisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.
Chrome does not expose the same publisher verification data as IDE stores, so this score is deliberately conservative.
12 evidence rows available.
Finding Categories
YARA Rules Matched
11 rules(67 hits)Requested Permissions
5 permissionsAccess and modify data on every website you visit
AI Security Report
AI Security Review
Evidence context: threat category none; evidence quality moderate.
This extension claims to be a Flash Player emulator using Ruffle technology, a legitimate open-source Flash emulator that compiles to WebAssembly. The findings reveal no malware signatures and no actual malicious behavior, despite the high finding count of 1210 total detections.
The IoC findings (1131 detections) are all .rs domains like immediate.rs, navigate.rs, intrusive.rs, value.rs, queue.rs, and byte.rs. These are not real network domains but Rust library names or property access patterns misidentified by the XIOC extractor—a well-documented false positive pattern. No legitimate network domains appear in the evidence.
The obfuscation finding flags a large WASM file at ruffle/81d63abfb638f19f765a.wasm. This is expected and legitimate: Ruffle is a Rust-based Flash emulator that compiles to WebAssembly, and this WASM file is the actual emulator runtime, not obfuscation. The network findings (10 fetch calls in bg.js at lines 88, 184, 581, 675, 983) are normal for an extension that loads Flash content dynamically.
The code-smell findings (67 detections, all high severity in the summary) are classified as code-smell/low severity and match basic JavaScript patterns—these are noise per the CVEQ false positive documentation.
The strongest counterargument is that Flash Player extensions are a known malware delivery vector since Flash has been EOL since 2020. The developer email [email protected] provides no verifiable company identity, and the extension name "Flash Player Emulator 2026" could be social engineering. However, the presence of actual Ruffle WASM code, zero malware signatures, and the explainable nature of all findings (IoC garbage, legitimate WASM, normal fetch calls) outweigh these concerns. A malicious actor would need to hide malware signatures, which this extension does not have. The high finding count is driven by bundled Ruffle code and XIOC false positives, not malicious behavior.
This extension appears to be a legitimate Ruffle wrapper with findings inflated by known false positive patterns. The developer should add proper attribution, but the technical evidence does not support a malicious verdict.
Key Reasons
- Zero malware signatures detected despite 1210 total findings
- WASM file is legitimate Ruffle emulator code, not obfuscation
- IoC domains are Rust property names misidentified as real domains
- Network calls are normal fetch operations for loading Flash content
- Code-smell findings are documented false positive noise
False Positive Considerations
- XIOC extractor misidentifying Rust property names as domains (.rs domains)
- Large WASM file is legitimate Ruffle emulator, not obfuscation
- Code-smell findings are low-severity noise per CVEQ documentation
- High finding count driven by bundled Ruffle dependencies
Reviewed 2026-05-23; recommended action: suppress false positive; model confidence 78%.
Source Code Not Available
Source code is not available for this version of the extension.
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