09a8d4cb70
- APKMirrorSource searches APK metadata pages for key patterns - CrtShSource discovers subdomains via CT logs and probes config endpoints - Both credentialless, emit findings on ciLogKeyPattern match
95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
package sources
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"time"
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"golang.org/x/time/rate"
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"github.com/salvacybersec/keyhunter/pkg/providers"
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"github.com/salvacybersec/keyhunter/pkg/recon"
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)
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// APKMirrorSource searches APKMirror for mobile app metadata (descriptions,
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// changelogs, file listings) that may contain leaked API keys. This is a
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// metadata scanner -- it does not decompile APKs. Full decompilation via
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// apktool/jadx would require local binary dependencies and is out of scope
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// for a network-based ReconSource.
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type APKMirrorSource struct {
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BaseURL string
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Registry *providers.Registry
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Limiters *recon.LimiterRegistry
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Client *Client
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}
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var _ recon.ReconSource = (*APKMirrorSource)(nil)
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func (s *APKMirrorSource) Name() string { return "apkmirror" }
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func (s *APKMirrorSource) RateLimit() rate.Limit { return rate.Every(5 * time.Second) }
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func (s *APKMirrorSource) Burst() int { return 2 }
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func (s *APKMirrorSource) RespectsRobots() bool { return true }
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func (s *APKMirrorSource) Enabled(_ recon.Config) bool { return true }
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func (s *APKMirrorSource) Sweep(ctx context.Context, query string, out chan<- recon.Finding) error {
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base := s.BaseURL
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if base == "" {
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base = "https://www.apkmirror.com"
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}
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client := s.Client
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if client == nil {
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client = NewClient()
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}
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queries := BuildQueries(s.Registry, "apkmirror")
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if len(queries) == 0 {
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return nil
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}
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for _, q := range queries {
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if err := ctx.Err(); err != nil {
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return err
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}
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if s.Limiters != nil {
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if err := s.Limiters.Wait(ctx, s.Name(), s.RateLimit(), s.Burst(), false); err != nil {
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return err
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}
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}
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searchURL := fmt.Sprintf(
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"%s/?post_type=app_release&searchtype=apk&s=%s",
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base, url.QueryEscape(q),
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)
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, searchURL, nil)
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if err != nil {
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continue
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}
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resp, err := client.Do(ctx, req)
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if err != nil {
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continue
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}
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body, err := io.ReadAll(io.LimitReader(resp.Body, 512*1024))
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_ = resp.Body.Close()
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if err != nil {
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continue
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}
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if ciLogKeyPattern.Match(body) {
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out <- recon.Finding{
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ProviderName: q,
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Source: searchURL,
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SourceType: "recon:apkmirror",
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Confidence: "medium",
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DetectedAt: time.Now(),
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}
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}
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}
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return nil
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}
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