Two malware variants used in simultaneous cyber-threat campaigns against United States utility entities have been linked to a single threat group. New research into the “FlowCloud” and “LookBack” variants showed similarities that extend beyond targeting. Both are sophisticated remote-access trojans (RATs) that use sector-specific spearphishing emails and other overlapping tactics, techniques, and procedures (TTPs). Researchers have begun to track the operators of FlowCloud and LookBack as “TA410”, likely a capable and persistent group that poses a credible threat to utility entities; TA410’s ability to access services and processes, using LookBack and FlowCloud, would likely enable the group to control or manipulate compromised networks and halt critical functions, as well as steal sensitive business data.

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