Is Monosearch safe?
Monosearch reads Amazon product and seller data from pages you view and forwards it to the vendor's mnsearch.com and mnrate.com backends.
On Amazon pages, the content script extracts ASINs, prices, seller IDs and identification numbers and relays them through the background worker to mnsearch.com and mnrate.com for its reselling-research feature. It also fetches a remote configuration file (recommendsite.json) from mnsearch.com and injects a server-chosen link as a recommendation banner into pages. The extension requests access to all http and https sites even though its active logic only runs on Amazon.
Who publishes itインベイズ株式会社 - 1 other listing from the same operator, none carrying a finding
インベイズ株式会社 - 1 other listing from the same operator, none carrying a finding
What this publisher told the store about itself, and the other listings that told it the same thing.
Same store account
1 other listing published from this account, 20k+ users between them, none of them carrying a finding.
Shared hosts - 3 hostnames
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
Findings
Remote recommendation config injects page links
Monosearch requests a recommendation config from mnsearch.com, then picks a URL from the recommend list and renders it as a clickable banner on shopping pages.
The link destination can change whenever the server updates the config.
What actually happens
You browse a supported shopping page while the recommendation feature is enabled.
The extension fetches a recommendation list and places one server-provided URL into a clickable page banner.
Captured request
200 OK observed during dynamic analysis; the recorded evidence says the response contained recommendation URL entries.
Fields used from the recommendation configuration
- Recommendation URLhttps://netsedori.com/archives/5304
This is the destination that can open when you click the recommendation image shown on the page.
- Recommendation titleミントの電脳せどりブログ
This gives context for the recommendation entry but does not identify you by itself.
- Recommendation date2018/11/14
This describes the configured recommendation entry and can be changed by the configuration publisher.
The code that does this
The request, selection, and banner rendering code paths
Background maps the recommendation API type to the mnsearch.com JSON endpoint
js/background.jsstatic get json() { return { API: { recommend: "https://mnsearch.com/media/recommendsite.json", advertisement_spot: "https://mnsearch.com/media/advertisement_spot_parameter.json" } }}class bt extends ht { constructor(t) { super(t) } exec(t, e, a) { return this.sendGetSellerData(t, a) } sendGetSellerData(t, e) { let a = G.json.API, i = t.jsonAPI.type; return this.param = { url: a[i] }, this.send({}, e), !0 }}Content script asks for recommendation JSON and chooses one configured URL
js/contents_script.jsclass fr extends Ma { constructor() { super() } request() { return new Promise(((e, t) => { chrome.runtime.sendMessage({ jsonAPI: { type: "recommend" } }, (t => { e(t) })) })) }}async start(e) { this._eventView.sender = e => {}; let t = await this._advancedSettingModel.get(); try { let e = await this._monosarchJSONDataModel.request(); this._targetURL = this.choiceTargetURL(e) } catch (e) {} let a = await this._monosarchAdvJSONDataModel.request(); this._advURLs = a, this.startAdv(t)}startAdv(e) { this._view.targetURL = this._targetURL, this._view.advURLs = this._advURLs, this._view.setMonoSearchAdvertisementEnableFlag(e.monoSearchAdvertisementEnableFlag), this._view.start()}choiceTargetURL(e) { let t = e.recommend.length; return t ? e.recommend[Math.floor(Math.random() * t)].url : ""}The selected URL becomes the image link in the banner data
js/contents_script.jscreateRecommendBiggerBanner(e = "detail_product_under", t = "msExProAdvertisementTitle", a = "") { let i = this.randRecommendBiggerBanner(this._targetURL); return i.url = this._targetURL, At.createBiggerBanner({ _SHOW_HIDE_CLAZZ: this._SHOW_HIDE_CLAZZ, adBannerPrefix: e, msg: t, clazzName: a, openCloseTypeClazzName: this.getOpenCloseTypeClazzName(), bannerData: i })}randRecommendBiggerBanner(e) { Math.floor(100 * Math.random()); let t = this._RECOMMEND_BANNER.HASHI_001, a = chrome.i18n.getMessage("msExProAdvertisementTitle"); return { path: t, bannerType: 100, hrefAtImage: e, hrefAtComment: this._PRO_URL, bannerTitle: a }}External hosts involved in this behavior
- mnsearch.com
Provides the recommendation configuration that supplies URL entries used by the page banner.
- netsedori.com
- keigo10.com
- reiji-fukuyama.com
One current recommendation URL value returned by the configuration endpoint during enrichment.
What it can do
Permissions this extension asks for, as declared in version 7.0.7. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 7.0.9, which we have not unpacked yet.
Read and change your data on every site you visit
http://*/*
Read and change your data on every secure site you visit
https://*/*
Add items to the right-click menu
contextMenus
Show you desktop notifications
notifications
Store data in your browser
storage
Where it sends data
Destinations our analysis observed Monosearch contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- mnrate.com
Monosearch sends data to mnrate.com. No other extension we have analyzed sends data here.
- mnsearch.com
Monosearch sends data to mnsearch.com. No other extension we have analyzed sends data here.