Developer Uses Doubao to Reverse Engineer WeChat Mini Program Sunflower Code in 31 Minutes
11/02/2026 — 11/02, 22:16·1 sources (all)·1 reports (all)
Key takeaways
- A V2EX developer shared that they used Doubao to successfully reverse engineer and reproduce the encoding and decoding algorithm for WeChat…
Background & analysis
On 2026-11-02, a developer posted on V2EX that they had seen a Kuihua code shared in a group chat. Long-pressing it did not open a mini program as expected, but jumped straight to a URL, and the code could only be recognized by long-pressing inside WeChat, not by other apps. Over the following days, more people started making and DIYing with it, which led the developer to believe the encoding had been reverse engineered, and listings reportedly appeared on Xianyu. To avoid jeopardizing their codex account, the developer turned to Doubao instead. They said Doubao completed the reverse engineering and reproduced the encoding and decoding algorithm of WeChat mini program Kuihua codes in 31 minutes. The developer described the reproduction as fully automated by Doubao, intended solely for personal learning, and stated that no related technical code or principles were disclosed. Reverse-engineered artifacts tied to the code have since appeared through some channels. No official response or follow-up action has been reported so far.
AI-generated from 1 reports · updated 20 hours ago
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According to a developer on V2EX, they used Doubao to successfully reverse engineer and reproduce the encoding and decoding algorithm of WeChat Mini Program Sunflower Codes in 31 minutes.
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