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We continue to explore a question about the existence of a new stronglycoupled dynamics above the electroweak scale. The latter has been recentlyrealized in the simplest consistent scenario, the vector-like (orchiral-symmetric) Technicolor model based upon the gauged linear sigma-model.One of the predictions of a new strong dynamics in this model, the existence ofstable vector-like technibaryon states at a TeV scale, such that the lightestneutral one could serve as a Dark Matter candidate. Here, we consider theQCD-type Technicolor with SU(3)_TC confined group and one SU(2)_W doublet ofvector-like techniquarks and test this model against existing Dark Matterastrophysics data. We show that the spin-independent Diractechnineutron-nucleon cross section is by far too large and ruled out byXENON100 data. We conclude that vector-like techniquark sectors with an oddgroup of confinement SU(2n+1)_TC, n=1,2,... and with ordinary vector-like weakSU(2)_W interactions are excluded if the technibaryon number is conserved. Wediscuss a possible generic TC scenario with a technibaryon sector interactingvia an extra vector SU(2)_V other than the standard weak SU(2)_W and considerimmediate implications for the cosmological evolution and freeze out of heavyrelic technineutrons.

Vector-like technineutron Dark Matter: is a QCD-type Technicolor ruled out by XENON100?