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Lazarus Strikes npm Again with New Wave of Malicious Packages
The Socket Research Team has discovered six new malicious npm packages linked to North Korea’s Lazarus Group, designed to steal credentials and deploy backdoors.
Custom JS error creator that subclasses Error
, sets .name
.stack
and .message
, and provides simple interpolation to construct error messages.
var zerr = require('zerr')
// first param: error name
// second param: string template for error messages (substitutes '%' with args in constructor)
var BadParam = zerr('BadParam', '% must be a %')
// using the created error:
try { throw new BadParam('foo', 'string') }
catch (e) {
console.log(e.name) // => 'BadParamError'
console.log(e.message) // => 'foo must be a string'
console.log(e.stack) // => 'BadParamError: foo must be a string\nat repl:1:13...'
console.log(e instanceof Error) // => true
console.log(e instanceof BadParam) // => true
}
// the `new` is optional
throw BadParam('foo', 'string')
// if no string template is given, zerr will just use the constructor's param as the message
var BadParam = zerr('BadParam')
try { throw new BadParam('foo is bad') }
catch (e) {
console.log(e.message) // => 'foo is bad'
}
// if you pass an error as the first param to the constructor, zerr will add its stack to the stack history
// (taken from https://github.com/dominictarr/explain-error)
try { throw new BadParam(new BadParam('earlier foo was bad'), 'foo is bad') }
catch (e) {
console.log(e.stack) /* =>
BadPararmError: foo is bad
at repl:1:7
BadPararmError: earlier foo was bad
at repl:1:15
*/
}
FAQs
custom error construction
The npm package zerr receives a total of 1,104 weekly downloads. As such, zerr popularity was classified as popular.
We found that zerr demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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