Amid all the horror of last night's 'Walking Dead' midseason climax "Too Far Gone," viewers were privy to two mysterious unidentified teasers highlighting found footage of assembled rats, and a tagline "He is Here." Some have pointed to potential viral advertising for 'Godzilla,' but are the teasers actually undercover spots for Guillermo del Toro's FX vampire drama 'The Strain'?

As brought to our attention by JoBlo, the brief teasers feature only brief footage of rats amassing in a public cafe and what looks to be a government building respectively, linked by the miniscule text "HE IS HERE." FX declined to comment on the promo -- posted to YouTube by a fan site -- but sources tell The Hollywood Reporter that the mysterious, unlabeled spot is indeed the first promo for the forthcoming vampire drama 'The Strain.'

Based on del Toro’s 2009 novel trilogy, ‘The Strain’ follows Dr. Ephraim “Eph” Goodweather (‘House of Cards‘ star Corey Stoll), a CDC operative who investigates a mysterious viral outbreak with hallmarks of an ancient and evil strain of vampirism. As the strain spreads, Eph, his team and an assembly of everyday New Yorkers wage war for the fate of humanity itself. FX’s adaptation will see a run of 13 episodes beginning in July 2014.

Also present among the cast are Sean Astin (‘Lord of the Rings‘), Roger Cross (‘24‘), Leslie Hope, Robert Maillet (‘Pacific Rim‘), Mia Maestro (‘Alias’), Lauren Lee Smith, Miguel Gomez, Kevin Durand (‘LOST‘), David Bradley ('Game of Thrones,' replacing John Hurt) and Richard Sammel (‘Inglorious Basterds’). Former ‘LOST’ and current ‘Bates Motel‘ showrunner Carlton Cuse will helm FX’s adaptation from a screenplay by del Toro and novel co-writer Michael Hogan. FX President John Landgraf previously told reporters del Toro’s vision had included adapting his novel trilogy over up to five seasons, anywhere between 39 and 65 total episodes.

We'll keep you posted in the teaser's true origins, but what say you? Is the above spot establishing a creepy viral spread of 'The Strain'?

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