Gauss
Gauss (canonical Kaspersky naming after Carl Friedrich Gauss mathematician derived from winshell.ocx banking module per Kaspersky August 9, 2012 canonical Securelist disclosure by Roel Schouwenberg + GReAT team) is a modular banking-trojan-capable cyber-espionage platform , operationally significant as the first publicly known nation-state sponsored banking Trojan per Kaspersky 2012 attribution.
speculatively attributed to US-Israel joint offensive cyber operation cluster cell coherence with Stuxnet Olympic Games operation per Kaspersky "same factory" attribution (Flame-platform- derived codebase + similar modular structure + similar C&C communication system + numerous other similarities to Flame)
NPR + industry-analyst-speculated US-interest mission profile of tracking Iran-Hezbollah-Syria financial transactions via Lebanese banking system (Iran banned from US banks + Lebanon banking secrecy law per Bilal Saab Monterey Institute analysis)
active August-September 2011 to July 2012 (~10+ months covert operational deployment before discovery) with most recent variant debut January 2012 and C&C infrastructure shutdown July 2012 (5 C&C servers went dark); operational target footprint per Kaspersky cloud data July 31, 2012: Lebanon 1,600+ computers primary target + Israel + Palestinian Territory 750 incidents combined + smaller documented incidents in US + UAE + Qatar + Jordan + Germany + Egypt.
~2,500 documented infections by Kaspersky cloud with estimated tens of thousands total.
signature Lebanese banking targeting Bank of Beirut + Byblos Bank + Fransabank + EBLF + BlomBank + Credit Libanais + Citibank + PayPal (fine-tuned select target list distinct from criminal banking trojans); signature mathematician-named modules (Gauss + Lagrange + Godel + Kurt as Gödel reference + Tailor)
signature encrypted unknown payload USB-triggered that Kaspersky was unable to decrypt through 2012-2026, surgically targets specific system configuration with specific program installed (Kaspersky invited cryptographers at theflame@kaspersky.com to help crack.
per Roel Schouwenberg "We think this payload is a destructive one... It could be Stuxnet all over again")
signature Palida Narrow custom Windows font forensic marker (Kaspersky + CrySyS Lab posted online detection tools); "white" file designation operationally referencing Lebanon (Semitic root word meaning "white")
USB stick infection vector similar to Stuxnet.
Mozilla Firefox- compatible browser plug-in for banking credential theft; encrypted registry setting for plugin loading (Duqu- similar architecture)
200KB mother-ship module + 2MB full platform (about one-third of Flame's ~20MB modular platform)
round-robin DNS C2 distribution first observed in Olympic Games cluster cell.
cluster- cell coherence per Kaspersky canonical attribution chain "Gauss is related to Flame, Flame is related to Stuxnet, Stuxnet is related to Duqu. Hence, Gauss is related to Duqu".
fills the 4th and final cluster completing the canonical Olympic Games / US-Israel joint cyber-operations cell in this curated corpus, cycles industry reference points across cyber-sabotage (Stuxnet) + modular cyber-espionage (Flame) + reconnaissance + diplomatic-venue targeting (Duqu/Duqu 2.0) + banking-trojan signals intelligence (Gauss); operator industry skepticism perspective per Robert Graham (Errata Security): "'State sponsored' is thrown around too easily without actual evidence... it could just as easily be sponsored by a Russian crime syndicate as a 'state'", though Graham acknowledged "There is reason to believe it was more than just your normal malware in that only specific targets can decrypt a payload".
continued industry reference status as canonical "first publicly known nation-state sponsored banking Trojan" through 2012-2026 period.