"VirusTotal had no immediate comment."
"[...], Kaspersky denied using this technique. It said it too had been a victim of such an attack in November 2012, when an "unknown third party" manipulated Kaspersky into misclassifying files [...]"
"The former Kaspersky employees said Microsoft was one of the rivals [...] They declined to give a detailed account of any specific attack."
"In a subsequent interview on Wednesday, Batchelder declined to comment on any role Kaspersky may have played in the 2013 printer code problems or any other attacks. Reuters has no evidence linking Kaspersky to the printer code attack."
"Avast Chief Operating Officer Ondrej Vlcek told Reuters in April that he suspected the offenders were well-equipped malware writers and "wanted to have some fun" at the industry's expense. He did not respond to a request on Thursday for comment on the allegation that Kaspersky had induced false positives."
So, no one says it's Kaspersky, someone called "former employees" says it was, but can't provide any example...