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CurlBack is a remote access trojan (RAT) referenced as one of multiple malware families deployed by TAG-140, a cluster assessed to overlap with SideCopy and to be affiliated with Transparent Tribe (APT36/ProjectM/MYTHIC LEOPARD). Reporting places its use in campaigns primarily targeting Indian entities, including government and defense organizations, with more recent targeting also involving organizations linked to India’s railway, oil and gas, and external affairs ministries. TAG-140 infection activity described in the supporting content includes spearphishing, HTA or MSI distribution, vulnerability exploitation including WinRAR, and ClickFix-style social engineering, and the group commonly targets both Windows and Linux environments. However, the provided content does not give family-specific technical details for CurlBack’s capabilities, infection chain, command-and-control behavior, persistence mechanisms, or indicators of compromise beyond identifying it as one of the RATs used by the group.
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
"Both versions of the RATs are among many that the group has deployed, including CurlBack, SparkRAT, AresRAT, Xeno RAT, AllaKore, and ReverseRAT."
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
"Both versions of the RATs are among many that the group has deployed, including CurlBack, SparkRAT, AresRAT, Xeno RAT, AllaKore, and ReverseRAT."
Remote access trojan referenced as part of TAG-140’s rotating malware arsenal.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.