VHS - Dev Tools
Score-based assessment (critical risk, 86/100). No analyst review available.
Analysis record
- Analysed
- 3 weeks ago
- Version
- v1.11.0
- Artifact
- SHA256 0A1…561
- Source
- Findings (non-IoC)
Evidence ledger
Ranked by severity · findings with a source location link to the code viewer
YARA Rule Matches
19 rules| Severity | Rule | Hits | Files | Metadata |
|---|---|---|---|---|
| HIGH | supply chain sourcemap appended iife | 1 | assets/obfuscator-lib-hpFKhIdZ.js | - |
| LOW | LocalStorageShouldNotBeUsed | 1 | assets/useTheme-CQH_r5Gh.js | - |
| LOW | DebuggerStatementsShouldNotBeUsed | 6 | assets/obfuscator-lib-hpFKhIdZ.jsassets/typescript-BgaPxjvi.jsassets/prettierFormat-CyjrIyV5.js +3 more | - |
| LOW | postinstall persistence mechanism | 22 | assets/purify.es-BGtG0CB9.jsMETA-INF/manifest.mfassets/CronPreview-Bh-rG8Mz.js +19 more | - |
| LOW | credential env files | 7 | assets/obfuscator-lib-hpFKhIdZ.jsassets/monacoSetup-DdwK8v68.jsassets/prettierFormat-CyjrIyV5.js +4 more | - |
| LOW | RedirectToUnknownPath | 1 | assets/prettierFormat-CyjrIyV5.js | - |
| LOW | NoUseEval | 2 | assets/obfuscator-lib-hpFKhIdZ.jsassets/format-CeCVwiMI.js | - |
| LOW | NoUseWeakRandom | 7 | assets/demo-BvMeZhbf.jsassets/obfuscator-lib-hpFKhIdZ.jsassets/monacoSetup-DdwK8v68.js +4 more | - |
| LOW | postinstall file download | 44 | assets/SvgViewer-D1yVMljm.jsassets/diff-CoeXCNAO.jsassets/DataUriPreview-ClwjVcFe.js +41 more | - |
| LOW | SQLInjection | 4 | assets/svgMinify-D3gDOZz2.jsassets/cookies-BCCfrbuF.jsassets/monacoSetup-DdwK8v68.js +1 more | - |
| LOW | postinstall environment access | 59 | assets/ViewerToolbar-DkZrZVCK.jsassets/Checked-BSZCbOnb.jsassets/shareUpload-ewGpuHk0.js +56 more | - |
| LOW | postinstall network communication | 37 | META-INF/cose.manifestassets/obfuscator-lib-hpFKhIdZ.jsassets/index.ts-nKS7XYXS.js +34 more | - |
| LOW | OriginsNotVerified | 7 | assets/viewer-BwllY2yM.jsassets/editor.worker-CHzQTjO0.jsassets/css.worker-C_6RgliQ.js +4 more | - |
| LOW | postinstall system command | 43 | assets/theme-Daqdr5br.jsassets/index-COKRXjZj.jsassets/json.worker-BggoxaER.js +40 more | - |
| LOW | UsingShellInterpreterWhenExecutingOSCommands | 1 | assets/prettierFormat-CyjrIyV5.js | - |
| LOW | postinstall obfuscation | 39 | assets/settings-DyPHQe3v.jsassets/svgMinify-D3gDOZz2.jsassets/UriComponentPreview-Doxv7wUR.js +36 more | - |
| LOW | postinstall registry modification | 8 | assets/format-CeCVwiMI.jsassets/prettierFormat-CyjrIyV5.jsassets/monacoSetup-DdwK8v68.js +5 more | - |
| LOW | postinstall crypto operations | 37 | assets/gravatar-Csiw7daZ.jsassets/index-DV2FDGWN.jsassets/AddOnsMenuContent-BNq10cNC.js +34 more | - |
| LOW | postinstall file manipulation | 57 | assets/json.worker-BggoxaER.jsassets/clsx-BrCYZPF_.jsassets/bcrypt-6kt066Gq.js +54 more | - |
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 evidenceVihat Software
Publisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.
Firefox 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
19 rules(383 hits)Requested Permissions
10 permissionsAccess and modify data on every website you visit
Read data from your clipboard
Read and modify cookies on all sites
Security Analysis Summary
Security Analysis Overview
VHS - Dev Tools is a Firefox Add-ons extension published by Vihat Software. Version 1.11.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 85.81/100 (CRITICAL risk) based on 1041 security findings.
Risk Assessment
This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.
Findings Breakdown
- Critical: 1 finding(s)
- High: 6 finding(s)
- Medium: 652 finding(s)
- Low: 382 finding(s)
What Was Analyzed
The security assessment covers multiple analysis categories:
- Malware Detection: YARA rule matching against 2,400+ malware signatures
- Secret Detection: Scanning for exposed API keys, tokens, and credentials
- Static Analysis: Code-level security analysis for common vulnerability patterns
- Network Analysis: Detection of suspicious network communications and endpoints
- Obfuscation Detection: Identification of code obfuscation techniques
Developer Information
VHS - Dev Tools is published by Vihat Software on the Firefox Add-ons marketplace. The extension has approximately 2 users.
Recommendation
This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.
Firefox version history
Risk trend by version
20 analyzed versions. Each point is the latest successful scan for that version; failed zero-score scans are hidden. Dates are based on first seen by risky plugins.
Pick any point on the chart to explore that version's code below.
Source Code Not Available
Source code is not available for this version of the extension.
About This Extension
Frequently Asked Questions
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