micro-cap

maintainer greyltc · 1 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt Windows executable archive (mc12cd.zip) from spectrum-soft.com, which is the official vendor website for Micro-Cap (Spectrum Software). This is not a random personal host — Spectrum Software was the legitimate developer of Micro-Cap, which was released as freeware in 2019. The archive is installed into /usr/share/micro-cap and executed via a Wine launcher script. There is a sha256 checksum, providing integrity verification. However, the concern is real: a prebuilt binary installer from a vendor website (not a source forge or official mirror with transparency) is executed via Wine, and if the host were compromised or the binary swapped, the checksum would be the only protection. The build() function is commented out, meaning the zip is shipped as-is and unpacked at runtime by the launcher. This is a legitimate but non-ideal packaging pattern — distributing a prebuilt proprietary Windows binary run under Wine. The medium rating is appropriate: it is not clearly malicious, but it is an executed binary from a non-standard (though official vendor) host with no source build.

Triggered rules

MEDIUM source=() URL on a non-standard host source_untrusted_domain

One or more source=() URLs point to a host outside the trusted allowlist (github.com, gitlab.com, codeberg.org, pypi.org, …).

PKGBUILD:20 source=("${pkgname}-${pkgver}.zip::http://www.spectrum-soft.com/download/mc${pkgver}cd.zip" launcher.sh setup.iss.tar LICENSE)

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The PKGBUILD downloads a prebuilt Windows executable archive (mc12cd.zip) from spectrum-soft.com, which is the official vendor website for Micro-Cap (Spectrum Software). This is not a random personal host — Spectrum Software was the legitimate developer of Micro-Cap, which was released as freeware in 2019. The archive is installed into /usr/share/micro-cap and executed via a Wine launcher script. There is a sha256 checksum, providing integrity verification. However, the concern is real: a prebuilt binary installer from a vendor website (not a source forge or official mirror with transparency) is executed via Wine, and if the host were compromised or the binary swapped, the checksum would be the only protection. The build() function is commented out, meaning the zip is shipped as-is and unpacked at runtime by the launcher. This is a legitimate but non-ideal packaging pattern — distributing a prebuilt proprietary Windows binary run under Wine. The medium rating is appropriate: it is not clearly malicious, but it is an executed binary from a non-standard (though official vendor) host with no source build.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Grey Christoforo <first name at last name dot net>
    
      2
    
      3pkgname=micro-cap
    
      4pkgver=12
    
      5pkgrel=1
    
      6epoch=0
    
      7pkgdesc='an integrated schematic editor and mixed analog/digital circuit simulator'
    
      8arch=(x86_64)
    
      9url='http://www.spectrum-soft.com/index.shtm'
    
      10license=('custom')
    
      11depends=(
    
      12wine
    
      13wine-gecko
    
      14wine-mono
    
      15winetricks
    
      16xorg-server-xvfb
    
      17)
    
      18
    
      19# archived at https://web.archive.org/web/20201107223859/http://www.spectrum-soft.com/download/mc12cd.zip
    
      20source=("${pkgname}-${pkgver}.zip::http://www.spectrum-soft.com/download/mc${pkgver}cd.zip" launcher.sh setup.iss.tar LICENSE)
    
      21sha256sums=('f4fda36ae96ab618c0487b2ff199b37bb8b12a26ecabc2ef11c6d36a5bac02a7'
    
      22            '826f2d2d409889d8ed20e8770de3f07d9d20c7a5f9a39950066295cee613828a'
    
      23            '92823edceadc722b5c9c8951de18e6ee7166fcb5d8ae625212f456aa8f1d1fb8'
    
      24            '350a5c1fe63617959e971db8f3f97a694b251fefee296c88fcbd939d3ec90f63')
    
      25
    
      26noextract=(${pkgname}-${pkgver}.zip)
    
      27
    
      28#build(){
    
      29#  install -m755 -d tmp tmp/env tmp/local
    
      30#  export WINEPREFIX="${srcdir}/"tmp/env
    
      31#  export XDG_DATA_HOME="${srcdir}"/tmp/local
    
      32#  wineboot -u
    
      33#
    
      34#  cp setup.iss tmp/env/drive_c 
    
      35#  WINEDEBUG=-all wine "$srcdir"/setup.exe /SMS /s /f1"C:\setup.iss"
    
      36#}
    
      37
    
      38package() {
    
      39  cp launcher.sh micro-cap
    
      40  install -m755 -Dt "${pkgdir}"/usr/bin micro-cap
    
      41
    
      42  install -m755 -Dt "${pkgdir}"/usr/share/micro-cap ${pkgname}-${pkgver}.zip
    
      43  install -m644 -Dt "${pkgdir}"/usr/share/micro-cap setup.iss
    
      44
    
      45  install -m644 -Dt "${pkgdir}/usr/share/licenses/${pkgname}" LICENSE
    
      46}
    
      47

Scan history

Scanned at (UTC)	Severity	Rules
2026-08-03 00:08:14	MEDIUM	2
2026-08-02 00:16:08	MEDIUM	2
2026-08-01 00:11:18	MEDIUM	2
2026-07-31 00:14:10	MEDIUM	2
2026-07-30 00:17:23	MEDIUM	2
2026-07-29 00:25:53	MEDIUM	2
2026-07-28 00:07:28	MEDIUM	2
2026-07-27 00:24:32	MEDIUM	2
2026-07-26 00:07:32	MEDIUM	2
2026-07-25 00:13:44	MEDIUM	2
2026-07-24 00:02:28	MEDIUM	2
2026-07-23 00:14:47	MEDIUM	2
2026-07-22 00:29:32	MEDIUM	2
2026-07-21 00:24:15	MEDIUM	2
2026-07-20 00:19:49	MEDIUM	2
2026-07-19 00:17:08	MEDIUM	2
2026-07-18 00:14:48	MEDIUM	2
2026-07-17 00:06:16	MEDIUM	2
2026-07-16 00:05:41	MEDIUM	2
2026-07-15 00:09:25	MEDIUM	2