Hang on... to go from "System32" to "System33" is one bit flip, but to go from "System33" to "System34" is three bit flips at once. Doesn't that seem astronomically more likely to be a malicious program than bad RAM?
It's astronomically more likely to be a manufacturing defect what affected multiple cells than a malicious program what ... wrote to System34? And how the replacement of the DRAM module 'cured' that malicious program?