xvolkolak
The package downloads a prebuilt binary tarball (an unpacker emulator tool) from libpcap.net, which is the maintainer's personal domain rather than the official upstream release host (which is commented out as a Dropbox URL). The comment even acknowledges the official source is the Dropbox link and that the libpcap.net mirror was set up by the maintainer via wget mirroring. This is a classic supply-chain concern: a prebuilt executable is being served from a personal server controlled by the package maintainer, not the upstream author. If the maintainer's server were compromised or the maintainer acted maliciously, a different binary could be substituted. The sha256sum provides some protection against silent substitution but not against the maintainer intentionally serving a malicious binary. The 'base' directory likely contains native binaries (it's an unpacker emulator), and shell scripts are installed to /usr/bin. This is a genuine medium-severity supply-chain concern: executed binaries from a non-official personal host.
Triggered rules
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:14
source=("http://libpcap.net/xvolkolak/xvlk_lin64_public_${pkgver}.tar.gz")
llm_review
An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 75%): The package downloads a prebuilt binary tarball (an unpacker emulator tool) from libpcap.net, which is the maintainer's personal domain rather than the official upstream release host (which is commented out as a Dropbox URL). The comment even acknowledges the official source is the Dropbox link and that the libpcap.net mirror was set up by the maintainer via wget mirroring. This is a classic supply-chain concern: a prebuilt executable is being served from a personal server controlled by the package maintainer, not the upstream author. If the maintainer's server were compromised or the maintainer acted maliciously, a different binary could be substituted. The sha256sum provides some protection against silent substitution but not against the maintainer intentionally serving a malicious binary. The 'base' directory likely contains native binaries (it's an unpacker emulator), and shell scripts are installed to /usr/bin. This is a genuine medium-severity supply-chain concern: executed binaries from a non-official personal host.
PKGBUILD
1 offending line(s) highlighted# Maintainer: Tony Lambiris <tony@libpcap.net>
pkgname=xvolkolak
pkgver=0.22
pkgrel=3
pkgdesc="Xvolkolak is an unpacker emulator"
arch=(x86_64)
url="http://n10info.blogspot.com/"
license=(custom)
depends=(glibc)
# official source below
#source=('https://www.dropbox.com/s/7sk61nc798kcg32/xvlk_lin64_public_0.22.tar.gz?dl=1')
# wget --mirror --no-parent --convert-links --directory-prefix=xvolkolak --html-extension --restrict-file-names=windows http://n10info.blogspot.com/2018/08/xvolkolak-022.html
source=("http://libpcap.net/xvolkolak/xvlk_lin64_public_${pkgver}.tar.gz")
install="$pkgname.install"
sha256sums=('4b77ce5eab33314b13b7982cffdd7526b7a8f3575945ad13aae3ec1a79d95035')
package() {
mkdir -p "$pkgdir/usr/share/xvolkolak" "$pkgdir/usr/bin"
cp -a "${srcdir}/xvlk_lin64_public/base" "$pkgdir/usr/share/xvolkolak/"
cp -a "${srcdir}/xvlk_lin64_public/xvlkc.sh" \
"${srcdir}/xvlk_lin64_public/xvlk.sh" "$pkgdir/usr/bin/"
sed -i -re 's|./base|/usr/share/xvolkolak/base|g' "${pkgdir}"/usr/bin/*.sh
}
Scan history
| Scanned at (UTC) | Severity | Rules |
|---|---|---|
| 2026-09-17 00:27:14 | Medium | 2 |
| 2026-09-16 00:03:17 | Medium | 2 |
| 2026-09-15 00:25:31 | Medium | 2 |
| 2026-09-14 00:27:57 | Medium | 2 |
| 2026-09-13 00:19:54 | Medium | 2 |
| 2026-09-12 00:25:17 | Medium | 2 |
| 2026-09-11 00:19:22 | Medium | 2 |
| 2026-09-10 00:22:44 | Medium | 2 |
| 2026-09-09 00:04:09 | Medium | 2 |
| 2026-09-08 00:18:08 | Medium | 2 |
| 2026-09-07 00:30:15 | Medium | 2 |
| 2026-09-06 00:17:06 | Medium | 2 |
| 2026-09-05 00:16:27 | Medium | 2 |
| 2026-09-04 00:03:13 | Medium | 2 |
| 2026-09-03 00:15:47 | Medium | 2 |
| 2026-09-02 00:02:31 | Medium | 2 |
| 2026-09-01 00:11:19 | Medium | 2 |
| 2026-08-31 00:19:57 | Medium | 2 |
| 2026-08-30 00:04:14 | Medium | 2 |
| 2026-08-29 00:29:17 | Medium | 2 |